chore(deps): bump packaging from 24.2 to 25.0 (pyca#12783)

Bumps [packaging](https://github.com/pypa/packaging) from 24.2 to 25.0.
- [Release notes](https://github.com/pypa/packaging/releases)
- [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst)
- [Commits](pypa/packaging@24.2...25.0)

---
updated-dependencies:
- dependency-name: packaging
  dependency-version: '25.0'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

ci-constraints-requirements.txt

@@ -137,7 +137,7 @@ packaging==24.0 ; python_full_version < '3.8'
     #   nox
     #   pytest
     #   sphinx
-packaging==24.2 ; python_full_version >= '3.8'
+packaging==25.0 ; python_full_version >= '3.8'
     # via
     #   build
     #   dependency-groups