Bump black from 25.11.0 to 25.12.0 in the minor group

Bumps the minor group with 1 update: [black](https://github.com/psf/black).


Updates `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
  dependency-group: minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -57,9 +57,9 @@ dev-flake8 = [
   "pydoclint == 0.8.3",
   "pydocstyle == 6.3.0",
 ]
-dev-formatting = ["black == 25.11.0", "isort == 7.0.0"]
+dev-formatting = ["black == 25.12.0", "isort == 7.0.0"]
 dev-mkdocs = [
-  "black == 25.11.0",
+  "black == 25.12.0",
   "Markdown==3.10",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.6.0",