chore(deps): bump packaging from 24.1 to 26.2 in /backend/python/coqui (#9594)

Bumps [packaging](https://github.com/pypa/packaging) from 24.1 to 26.2.
- [Release notes](https://github.com/pypa/packaging/releases)
- [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pypa/packaging/compare/24.1...26.2)

---
updated-dependencies:
- dependency-name: packaging
  dependency-version: '26.2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

backend/python/coqui/requirements.txt

@@ -1,4 +1,4 @@
 grpcio==1.80.0
 protobuf
 certifi
-packaging==24.1
+packaging==26.2