Build(deps): Bump packaging from 26.0 to 26.1 in /requirements

Bumps [packaging](https://github.com/pypa/packaging) from 26.0 to 26.1.
- [Release notes](https://github.com/pypa/packaging/releases)
- [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst)
- [Commits](pypa/packaging@26.0...26.1)

---
updated-dependencies:
- dependency-name: packaging
  dependency-version: '26.1'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements/test.txt

@@ -1,5 +1,5 @@
 gitpython==3.1.46
-packaging==26.0
+packaging==26.1
 pytest==9.0.3
 pytest-xdist==3.8.0
 pytest-cov==7.1.0