build(deps): Bump psf/black from 25.11.0 to 25.12.0

Bumps [psf/black](https://github.com/psf/black) from 25.11.0 to 25.12.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@05f0a8c...782e560)

---
updated-dependencies:
- dependency-name: psf/black
  dependency-version: 25.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/black.yml

@@ -10,4 +10,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
-      - uses: psf/black@05f0a8ce1f71fbb36e1e032d3b518c7b945089a2  # 25.11.0
+      - uses: psf/black@782e5605c86aab56be6f905da10dcd3e463fd9c2  # 25.12.0