Bump black from 25.11.0 to 25.12.0

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]

Pipfile

@@ -9,7 +9,7 @@ requests = "==2.32.5"
 pydantic = "==2.12.5"
 
 [dev-packages]
-black = "==25.11.0"
+black = "==25.12.0"
 pytest = "==9.0.1"
 pytest-mock = "==3.15.1"
 mypy = "==1.19.1"