Bump packaging from 26.0 to 26.1

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]

docs/requirements.txt

@@ -19,7 +19,7 @@ lxml>=4.9.2
 MarkupSafe==3.0.3
 mistune==3.2.0
 myst-parser==4.0.1
-packaging==26.0
+packaging==26.1
 pluggy==1.6.0
 pydata-sphinx-theme==0.14.4
 Pygments==2.20.0