Bump black from 25.11.0 to 25.12.0 in /python

Bumps [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@25.11.0...25.12.0)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 25.12.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

python/poetry.lock

@@ -12,7 +12,7 @@ pytest = "9.0.1"
 pylint = "4.0.2"
 coverage = "7.12.0"
 mypy = "1.19.0"
-black = "25.11.0"
+black = "25.12.0"
 flake8 = "7.3.0"
 
 [build-system]