Update black requirement from >=23.7.0 to >=25.11.0

Updates the requirements on [black](https://github.com/psf/black) to permit the latest version.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@23.7.0...25.11.0)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 25.11.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements-dev.txt

@@ -3,7 +3,7 @@ pytest
 pytest-cov
 pytest-mockito
 robotstatuschecker
-black >= 23.7.0
+black >= 25.11.0
 ruff >= 0.5.5
 robotframework-tidy
 invoke >= 3.0.3