Bump the pypi-updates group with 4 updates

Bumps the pypi-updates group with 4 updates: [google-auth](https://github.com/googleapis/google-auth-library-python), [google-api-python-client](https://github.com/googleapis/google-api-python-client), [types-pyyaml](https://github.com/typeshed-internal/stub_uploader) and [lxml](https://github.com/lxml/lxml).


Updates `google-auth` from 2.38.0 to 2.39.0
- [Release notes](https://github.com/googleapis/google-auth-library-python/releases)
- [Changelog](https://github.com/googleapis/google-auth-library-python/blob/main/CHANGELOG.md)
- [Commits](https://github.com/googleapis/google-auth-library-python/compare/v2.38.0...v2.39.0)

Updates `google-api-python-client` from 2.166.0 to 2.169.0
- [Release notes](https://github.com/googleapis/google-api-python-client/releases)
- [Commits](https://github.com/googleapis/google-api-python-client/compare/v2.166.0...v2.169.0)

Updates `types-pyyaml` from 6.0.12.20250326 to 6.0.12.20250402
- [Commits](https://github.com/typeshed-internal/stub_uploader/commits)

Updates `lxml` from 5.3.1 to 5.4.0
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](https://github.com/lxml/lxml/compare/lxml-5.3.1...lxml-5.4.0)

---
updated-dependencies:
- dependency-name: google-auth
  dependency-version: 2.39.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
- dependency-name: google-api-python-client
  dependency-version: 2.169.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
- dependency-name: types-pyyaml
  dependency-version: 6.0.12.20250402
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: pypi-updates
- dependency-name: lxml
  dependency-version: 5.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
...

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

pyproject.toml

@@ -19,8 +19,8 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.9"
-google-auth = "2.38.0"
-google-api-python-client = "2.166.0"
+google-auth = "2.39.0"
+google-api-python-client = "2.169.0"
 icalendar = "6.1.3"
 pytz = "2025.2"
 PyYAML = "6.0.2"