fix(deps): update dependency werkzeug to v3.1.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
werkzeug (changelog)	==3.1.3 → ==3.1.6

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Release Notes

pallets/werkzeug (werkzeug)

v3.1.6

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This is the Werkzeug 3.1.6 security fix release, which fixes a security issue but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.6/
Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-6

• safe_join on Windows does not allow special devices names in multi-segment paths. GHSA-29vq-49wr-vm6x

v3.1.5

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Released 2026-01-08

• safe_join on Windows does not allow more special device names, regardless
  of extension or surrounding spaces. :ghsa:87hc-h4r5-73f7
• The multipart form parser handles a \r\n sequence at a chunk boundary.
  This fixes the previous attempt, which caused incorrect content lengths.
  :issue:3065 :issue:3077
• Fix AttributeError when initializing DebuggedApplication with
  pin_security=False. :issue:3075

v3.1.4

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Released 2025-11-28

• safe_join on Windows does not allow special device names. This prevents
  reading from these when using send_from_directory. secure_filename
  already prevented writing to these. :ghsa:hgf8-39gv-g3f2
• The debugger pin fails after 10 attempts instead of 11. :pr:3020
• The multipart form parser handles a \r\n sequence at a chunk boundary.
  :issue:3065
• Improve CPU usage during Watchdog reloader. :issue:3054
• Request.json annotation is more accurate. :issue:3067
• Traceback rendering handles when the line number is beyond the available
  source lines. :issue:3044
• HTTPException.get_response annotation and doc better conveys the
  distinction between WSGI and sans-IO responses. :issue:3056

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