Update black requirement from ~=24.10 to ~=25.1 in /kerngen (#60)

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@24.10.0...25.1.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Flavio Bergamaschi <flavio@intel.com>

Author: dependabot[bot]

kerngen/requirements.txt

@@ -2,7 +2,7 @@
 pydantic ~= 1.10
 
 # for dev / commits
-black ~= 24.10
+black ~= 25.1
 pylint ~= 3.3
 
 # for testing