Bump black from 25.11.0 to 25.12.0 in /lib/modelscan_api

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] <[email protected]>

Author: dependabot[bot]

lib/modelscan_api/requirements-dev.txt

@@ -1,5 +1,5 @@
 -r requirements.txt
-black==25.11.0
+black==25.12.0
 pre_commit==4.5.0
 pytest==9.0.1
 pytest-github-actions-annotate-failures==0.3.0