Bump the production-dependencies group in /backend with 4 updates

[dependabot]

Bumps the production-dependencies group in /backend with 4 updates: gunicorn, nltk, requests and google-genai.

Updates gunicorn from 25.1.0 to 25.3.0

Release notes

Sourced from gunicorn's releases.

Gunicorn 25.3.0

Bug Fixes

• HTTP/2 ASGI Body Duplication: Fix request body being received twice in HTTP/2 ASGI requests, causing JSON parsing errors with "Extra data" messages (#3558)

• ASGI Chunked EOF Handling: Add finish() method to callback parser to handle chunked encoding edge case where connection closes before final CRLF after zero-chunk

• HTTP/2 Documentation: Fix http_protocols examples to use comma-separated string instead of list syntax (#3561)

• Chunked Encoding: Reject chunk extensions containing bare CR bytes per RFC 9112 (#3556)

• Request Line Limit: Fix --limit-request-line 0 to mean unlimited as documented, instead of using default maximum. Works with both Python and fast C parser. (#3563)

Security

• ASGI Parser Header Validation: Add security checks per RFC 9110/9112:
  • Reject duplicate Content-Length headers
  • Reject requests with both Content-Length and Transfer-Encoding
  • Reject chunked transfer encoding in HTTP/1.0
  • Reject stacked chunked encoding
  • Validate Transfer-Encoding values
  • Strict chunk size validation

Changes

• Fast HTTP Parser: Update to gunicorn_h1c >= 0.6.3 for asgi_headers property and InvalidChunkExtension validation for bare CR rejection

• ASGI PROXY Protocol: Add PROXY protocol v1/v2 support to callback parser

• Docker Images: Update to Python 3.14

Gunicorn 25.2.0

New Features

• Fast HTTP Parser (gunicorn_h1c 0.4.1): Integrate new exception types and limit parameters from gunicorn_h1c 0.4.1 for both WSGI and ASGI workers
  • Requires gunicorn_h1c >= 0.4.1 for http_parser='fast'
  • Falls back to Python parser in auto mode if version not met
  • Proper HTTP status codes for limit errors (414, 431)

Bug Fixes

• uWSGI Async Workers: Fix InvalidUWSGIHeader: incomplete header error when using gevent or gthread workers with uwsgi protocol behind nginx. (#3552, [PR #3554](benoitc/gunicorn#3554))

... (truncated)

Commits

• 9bce72c Update changelog with missing 25.3.0 changes
• 2a15fdb Fix pylint isinstance-second-argument-not-valid-type warning
• 8d08aaa Fix --limit-request-line 0 to mean unlimited
• d40a374 Fix pytest-asyncio configuration and treq_asgi hex escapes
• da8bd48 Remove unused AsyncRequest class
• b00f125 Integrate gunicorn_h1c 0.6.3 with InvalidChunkExtension support
• bdb2ebd Reject chunk extensions with bare CR bytes (RFC 9112)
• 7057fc9 Fix http_protocols documentation to use string syntax
• d43acb8 Update to gunicorn_h1c >= 0.6.2 for asgi_headers support
• cbd27e8 Merge pull request #3559 from benleembruggen/fix/http2-asgi-body-duplication
• Additional commits viewable in compare view

Updates nltk from 3.9.3 to 3.9.4

Changelog

Sourced from nltk's changelog.

Version 3.9.4 2026-03-24

• Support Python 3.14
• Fix bug in Levenshtein distance when substitution_cost > 2
• Fix bug in Treebank detokeniser re quote ordering
• Fix bug in Jaro similarity for empty strings
• Several security enhancements
• Fix GHSA-rf74-v2fm-23pw: unbounded recursion in JSONTaggedDecoder
• Implement TextTiling vocabulary introduction method (Hearst 1997)
• Fix ALINE feature matrix errors and add comprehensive tests
• Support multiple VerbNet versions, fix longid/shortid regex for VerbNet ids
• Let downloader fallback to md5 when sha256 is unavailable
• Several other minor bugfixes and code cleanups

Thanks to the following contributors to 3.9.4: Min-Yen Kan, Eric Kafe, Emily Voss, bowiechen, Hrudhai01, jancallewaert, Mr-Neutr0n, pollak.peter89, ylwango613,

Version 3.9.3 2026-02-21

• Fix CVE-2025-14009: secure ZIP extraction in nltk.downloader (#3468)
• Block path traversal/arbitrary reads in nltk.data for protocol-less refs (#3467)
• Block path traversal/abs paths in corpus readers and FS pointers (#3479, #3480)
• Validate external StanfordSegmenter JARs using SHA256 (#3477)
• Add optional sandbox enforcement for filestring() (#3485)
• Maintenance: downloader/zipped models, CI/tooling updates

Thanks to the following contributors to 3.9.3: Chris Clauss, Eric Kafe, HyperPS, purificant, Shivansh-Game, Christopher Smith

Version 3.9.2 2025-10-01

• Update download checksums to use SHA256 in built index
• Fix percentage escape in new-style string formatting
• replace shortened URLs using goo.gl
• Make Wordnet interoperable with various taggers and tagged corpora
• Fix saving PerceptronTagger
• Document how to reproduce old Wordnet studies
• properly initialize Portuguese corpus reader
• support for mixed rules conversion into Chomsky Normal Form
• only import tkinter if a GUI is needed
• issue #2112 with Corenlp
• new environment variable NLTK_DOWNLOADER_FORCE_INTERACTIVE_SHELL
• Lesk defaults to most frequent sense in case of ties

Thanks to the following contributors to 3.9.2: Jose Cols, Peter de Blanc, GeneralPoxter, Eric Kafe, William LaCroix, Jason Liu, Samer Masterson, Mike014, purificant, Andrew Ernest Ritz, samertm, Ikram Ul Haq, Christopher Smith, Ryan Mannion

Version 3.9.1 2024-08-19

... (truncated)

Commits

• ad9c96b Update copyright year
• 7edcddf Updates for 3.9.4 release
• 67a2736 Merge pull request #3180 from yzhaoinuw/bug-on-edit_distance_align
• 2b17ac5 Fix edit_distance_align backtrace for high substitution costs
• 4b72976 Merge pull request #3018 from JuanIMartinezB/bug/shortid-longid
• 8a5619f Merge pull request #3222 from Syzygy2048/feature/texttiling-vocabulary-introd...
• c6574d7 Merge pull request #3289 from ihitamandal/codeflash/optimize-windowdiff-2024-...
• 98ff5d9 Merge pull request #3435 from Hrudhai01/fix-3260-detokenize-quotes
• aec4fce Merge pull request #3522 from ekaf/pathsec
• eec4ee3 Merge pull request #3526 from nltk/update-contributing
• Additional commits viewable in compare view

Updates requests from 2.32.5 to 2.33.1

Release notes

Sourced from requests's releases.

v2.33.1

2.33.1 (2026-03-30)

Bugfixes

• Fixed test cleanup for CVE-2026-25645 to avoid leaving unnecessary files in the tmp directory. (#7305)
• Fixed Content-Type header parsing for malformed values. (#7309)
• Improved error consistency for malformed header values. (#7308)

New Contributors

• @​ferdnyc made their first contribution in psf/requests#7277

Full Changelog: https://github.com/psf/requests/blob/main/HISTORY.md#2331-2026-03-30

v2.33.0

2.33.0 (2026-03-25)

Announcements

• 📣 Requests is adding inline types. If you have a typed code base that uses Requests, please take a look at #7271. Give it a try, and report any gaps or feedback you may have in the issue. 📣

Security

• CVE-2026-25645 requests.utils.extract_zipped_paths now extracts contents to a non-deterministic location to prevent malicious file replacement. This does not affect default usage of Requests, only applications calling the utility function directly.

Improvements

• Migrated to a PEP 517 build system using setuptools. (#7012)

Bugfixes

• Fixed an issue where an empty netrc entry could cause malformed authentication to be applied to Requests on Python 3.11+. (#7205)

Deprecations

• Dropped support for Python 3.9 following its end of support. (#7196)

Documentation

• Various typo fixes and doc improvements.

New Contributors

• @​M0d3v1 made their first contribution in psf/requests#6865
• @​aminvakil made their first contribution in psf/requests#7220
• @​E8Price made their first contribution in psf/requests#6960
• @​mitre88 made their first contribution in psf/requests#7244
• @​magsen made their first contribution in psf/requests#6553
• @​Rohan5commit made their first contribution in psf/requests#7227

Full Changelog: https://github.com/psf/requests/blob/main/HISTORY.md#2330-2026-03-25

Changelog

Sourced from requests's changelog.

2.33.1 (2026-03-30)

Bugfixes

• Fixed test cleanup for CVE-2026-25645 to avoid leaving unnecessary files in the tmp directory. (#7305)
• Fixed Content-Type header parsing for malformed values. (#7309)
• Improved error consistency for malformed header values. (#7308)

2.33.0 (2026-03-25)

Announcements

• 📣 Requests is adding inline types. If you have a typed code base that uses Requests, please take a look at #7271. Give it a try, and report any gaps or feedback you may have in the issue. 📣

Security

• CVE-2026-25645 requests.utils.extract_zipped_paths now extracts contents to a non-deterministic location to prevent malicious file replacement. This does not affect default usage of Requests, only applications calling the utility function directly.

Improvements

• Migrated to a PEP 517 build system using setuptools. (#7012)

Bugfixes

• Fixed an issue where an empty netrc entry could cause malformed authentication to be applied to Requests on Python 3.11+. (#7205)

Deprecations

• Dropped support for Python 3.9 following its end of support. (#7196)

Documentation

• Various typo fixes and doc improvements.

Commits

• 111d2b7 v2.33.1
• f0198e6 Fix malformed value parsing for Content-Type (#7309)
• bc7dd0f Fix cosmetic header validity parsing regex (#7308)
• 4443b1a Fix unintended test extra (#7306)
• 389eea5 Cleanup extracted file after extract_zipped_path test (#7305)
• 7407309 Packaging: DRY out extras definition (#7277)
• bc04dfd v2.33.0
• 66d21cb Merge commit from fork
• 8b9bc8f Move badges to top of README (#7293)
• e331a28 Remove unused extraction call (#7292)
• Additional commits viewable in compare view

Updates google-genai from 1.68.0 to 1.69.0

Release notes

Sourced from google-genai's releases.

v1.69.0

1.69.0 (2026-03-27)

Features

• Add consent_audio and voice_consent_signature and AsyncSession.setup_complete (69a02c4)
• Add custom_metadata to FileSearchResult. (aed1559)
• Add labels field to Veo configs (208a173)
• Add mime type for Audio content (674b837)
• Add model_status to GenerateContentResponse (Gemini API only) (ce86f2b)
• Add part_metadata in Part (Gemini API only) (ce86f2b)
• Add service tier for interactions. (b07002e)
• Add service tier to GenerateContent. (12b404b)
• Add support for more image and audio MIME types in Interactions content (8ec977c)
• Add supported models to the ModelOptions (1ccad7b)
• Autoenable mTLS in environment with bound token (Agent Engine with AgentAuthority) through google-auth migration (except custom client args, custom client or custom ClientSession) (a95d08a)
• genai: Add TURN_INCLUDES_AUDIO_ACTIVITY_AND_ALL_VIDEO to TurnCoverage (1ba8e2e)
• Support hyperparameters in distillation tuning (ad38e3a)
• Support rendered_parts in GroundingSupport (ce86f2b)

Bug Fixes

• Support us region routing (8e3e00c)

Documentation

• Update python docs for 1.68. (07ae1b1)

Changelog

Sourced from google-genai's changelog.

1.69.0 (2026-03-27)

Features

• Add consent_audio and voice_consent_signature and AsyncSession.setup_complete (69a02c4)
• Add custom_metadata to FileSearchResult. (aed1559)
• Add labels field to Veo configs (208a173)
• Add mime type for Audio content (674b837)
• Add model_status to GenerateContentResponse (Gemini API only) (ce86f2b)
• Add part_metadata in Part (Gemini API only) (ce86f2b)
• Add service tier for interactions. (b07002e)
• Add service tier to GenerateContent. (12b404b)
• Add support for more image and audio MIME types in Interactions content (8ec977c)
• Add supported models to the ModelOptions (1ccad7b)
• Autoenable mTLS in environment with bound token (Agent Engine with AgentAuthority) through google-auth migration (except custom client args, custom client or custom ClientSession) (a95d08a)
• genai: Add TURN_INCLUDES_AUDIO_ACTIVITY_AND_ALL_VIDEO to TurnCoverage (1ba8e2e)
• Support hyperparameters in distillation tuning (ad38e3a)
• Support rendered_parts in GroundingSupport (ce86f2b)

Bug Fixes

• Support us region routing (8e3e00c)

Documentation

• Update python docs for 1.68. (07ae1b1)

Commits

• 7cc2acc chore(main): release 1.69.0 (#2184)
• 12b404b feat: Add service tier to GenerateContent.
• b07002e feat: Add service tier for interactions.
• ad38e3a feat: support hyperparameters in distillation tuning
• 4dbb277 chore: Remove TYPE_JPG from ImageContent.MimeType enums
• 1ccad7b feat: Add supported models to the ModelOptions
• 2863dc7 chore: internal change
• 8a0483a chore: update comments
• 1ba8e2e feat(genai): add TURN_INCLUDES_AUDIO_ACTIVITY_AND_ALL_VIDEO to TurnCoverage
• 8e3e00c fix: support us region routing
• Additional commits viewable in compare view

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[github-actions]

Test Results

88 tests   87 ✅  28s ⏱️
 1 suites   1 💤
 1 files     0 ❌

Results for commit ae2a092.