build(deps): bump packaging (sqlc-dev#3940)

Bumps the production-dependencies group in /docs with 1 update: [packaging](https://github.com/pypa/packaging).


Updates `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
  dependency-group: production-dependencies
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -10,7 +10,7 @@ docutils==0.20.1
 idna==3.10
 imagesize==1.4.1
 myst-parser==4.0.1 
-packaging==24.2
+packaging==25.0
 pyparsing==3.2.3
 pytz==2025.2
 requests==2.32.3