chore(deps): bump the dependencies group with 2 updates

[dependabot]

Bumps the dependencies group with 2 updates: black and mypy.

Updates black from 25.11.0 to 25.12.0

Release notes

Sourced from black's releases.

25.12.0

Please test out the draft 2026 style in version 26.1a1! This style will be finalized in the January release (26.1.0). Most of the changes in --preview will be in the 2026 stable style, but not all. Please share your feedback!

This release (25.12.0) will still produce the 2025 style.

Highlights

• Black no longer supports running with Python 3.9 (#4842)

Stable style

• Fix bug where comments preceding # fmt: off/# fmt: on blocks were incorrectly removed, particularly affecting Jupytext's # %% [markdown] comments (#4845)
• Fix crash when multiple # fmt: skip comments are used in a multi-part if-clause, on string literals, or on dictionary entries with long lines (#4872)
• Fix possible crash when fmt: directives aren't on the top level (#4856)

Preview style

• Fix fmt: skip skipping the line after instead of the line it's on (#4855)
• Remove unnecessary parentheses from the left-hand side of assignments while preserving magic trailing commas and intentional multiline formatting (#4865)
• Fix fix_fmt_skip_in_one_liners crashing on with statements (#4853)
• Fix fix_fmt_skip_in_one_liners crashing on annotated parameters (#4854)
• Fix new lines being added after imports with # fmt: skip on them (#4894)

Packaging

• Releases now include arm64 Windows binaries and wheels (#4814)

Integrations

• Add output-file input to GitHub Action psf/black to write formatter output to a file for artifact capture and log cleanliness (#4824)

Changelog

Sourced from black's changelog.

25.12.0

Highlights

• Black no longer supports running with Python 3.9 (#4842)

Stable style

• Fix bug where comments preceding # fmt: off/# fmt: on blocks were incorrectly removed, particularly affecting Jupytext's # %% [markdown] comments (#4845)
• Fix crash when multiple # fmt: skip comments are used in a multi-part if-clause, on string literals, or on dictionary entries with long lines (#4872)
• Fix possible crash when fmt: directives aren't on the top level (#4856)

Preview style

• Fix fmt: skip skipping the line after instead of the line it's on (#4855)
• Remove unnecessary parentheses from the left-hand side of assignments while preserving magic trailing commas and intentional multiline formatting (#4865)
• Fix fix_fmt_skip_in_one_liners crashing on with statements (#4853)
• Fix fix_fmt_skip_in_one_liners crashing on annotated parameters (#4854)
• Fix new lines being added after imports with # fmt: skip on them (#4894)

Packaging

• Releases now include arm64 Windows binaries and wheels (#4814)

Integrations

• Add output-file input to GitHub Action psf/black to write formatter output to a file for artifact capture and log cleanliness (#4824)

Commits

• 782e560 Pin actions/checkout@v5.0.0 (#4895)
• f0f4094 Fix new lines being added after imports with # fmt: skip on them (#4894)
• 70fc194 Revert "Fix # fmt: skip ignored in deeply nested expressions" (#4893)
• 7044b14 Prepare 25.12.0 release (#4891)
• 5b470f0 Fix # fmt: skip ignored in deeply nested expressions (#4883)
• 1b342ef Fix crash when multiple # fmt: skip comments are used in multi-part if-clau...
• 7b265f1 Pin Hatch to hopefully fix Docker builds (#4878)
• c9523f4 Attempt to fix Docker build failures (#4876)
• 0f376e0 Fix crashes when fmt directives are indented (#4856)
• a8bfcc1 Fix fmt: skip skipping the line after instead of the line it's on (#4855)
• Additional commits viewable in compare view

Updates mypy from 1.19.0 to 1.19.1

Changelog

Sourced from mypy's changelog.

Mypy 1.19.1

• Fix noncommutative joins with bounded TypeVars (Shantanu, PR 20345)
• Respect output format for cached runs by serializing raw errors in cache metas (Ivan Levkivskyi, PR 20372)
• Allow types.NoneType in match cases (A5rocks, PR 20383)
• Fix mypyc generator regression with empty tuple (BobTheBuidler, PR 20371)
• Fix crash involving Unpack-ed TypeVarTuple (Shantanu, PR 20323)
• Fix crash on star import of redefinition (Ivan Levkivskyi, PR 20333)
• Fix crash on typevar with forward ref used in other module (Ivan Levkivskyi, PR 20334)
• Fail with an explicit error on PyPy (Ivan Levkivskyi, PR 20389)

Acknowledgements

Thanks to all mypy contributors who contributed to this release:

• A5rocks
• BobTheBuidler
• bzoracler
• Chainfire
• Christoph Tyralla
• David Foster
• Frank Dana
• Guo Ci
• iap
• Ivan Levkivskyi
• James Hilton-Balfe
• jhance
• Joren Hammudoglu
• Jukka Lehtosalo
• KarelKenens
• Kevin Kannammalil
• Marc Mueller
• Michael Carlstrom
• Michael J. Sullivan
• Piotr Sawicki
• Randolf Scholz
• Shantanu
• Sigve Sebastian Farstad
• sobolevn
• Stanislav Terliakov
• Stephen Morton
• Theodore Ando
• Thiago J. Barbalho
• wyattscarpenter

I’d also like to thank my employer, Dropbox, for supporting mypy development.

Mypy 1.18

We’ve just uploaded mypy 1.18.1 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance

... (truncated)

Commits

• 412c19a Bump version to 1.19.1
• 20aea0a Update changelog for 1.19.1 (#20414)
• 2b23b50 Serialize raw errors in cache metas (#20372)
• f60f90f Fail on PyPy in main instead of setup.py (#20389)
• 58d485b Fail with an explicit error on PyPy (#20384)
• a4b31a2 Allow types.NoneType in match cases (#20383)
• 8a6eff4 [mypyc] fix generator regression with empty tuple (#20371)
• 70eceea Fix noncommutative joins with bounded TypeVars (#20345)
• 3890fc4 Fix crash involving Unpack-ed TypeVarTuple (#20323)
• c93d917 Fix crash on star import of redefinition (#20333)
• Additional commits viewable in compare view

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