Upgrade: [dependabot] - 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] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -46,7 +46,7 @@ pyjwt = {extras = ["crypto"], version = "^2.10.1"}
 [tool.poetry.group.dev.dependencies]
 pre-commit = "^4.5.0"
 cfn-lint = "^1.42.0"
-black = "^25.11.0"
+black = "^25.12.0"
 flake8 = "^7.3.0"
 jinja2 = "^3.1.5"
 pip-licenses = "^5.5.0"