deps(deps): bump black from 24.1.1 to 25.12.0 (#39)

Bumps [black](https://github.com/psf/black) from 24.1.1 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@24.1.1...25.12.0)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 25.12.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-dev.txt

@@ -9,7 +9,7 @@ httpx==0.28.1
 fakeredis>=2.21.0
 
 # Code Quality
-black==24.1.1
+black==25.12.0
 ruff==0.14.10
 mypy==1.19.1
 pre-commit==4.5.1

requirements.txt

@@ -89,7 +89,7 @@ httpx==0.28.1
 fakeredis>=2.21.0  # Redis mocking for tests (Issue #8)
 
 # Code Quality
-black==24.1.1
+black==25.12.0
 ruff==0.14.10
 mypy==1.19.1
 pre-commit==4.5.1