Bump the pypi-updates group with 5 updates

Bumps the pypi-updates group with 5 updates:

| Package | From | To |
| --- | --- | --- |
| [google-auth](https://github.com/googleapis/google-auth-library-python) | `2.36.0` | `2.40.3` |
| [google-api-python-client](https://github.com/googleapis/google-api-python-client) | `2.154.0` | `2.174.0` |
| [icalendar](https://github.com/collective/icalendar) | `6.1.0` | `6.3.1` |
| [flake8](https://github.com/pycqa/flake8) | `7.2.0` | `7.3.0` |
| [lxml](https://github.com/lxml/lxml) | `5.4.0` | `6.0.0` |


Updates `google-auth` from 2.36.0 to 2.40.3
- [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/v2.36.0...v2.40.3)

Updates `google-api-python-client` from 2.154.0 to 2.174.0
- [Release notes](https://github.com/googleapis/google-api-python-client/releases)
- [Commits](https://github.com/googleapis/google-api-python-client/compare/v2.154.0...v2.174.0)

Updates `icalendar` from 6.1.0 to 6.3.1
- [Release notes](https://github.com/collective/icalendar/releases)
- [Changelog](https://github.com/collective/icalendar/blob/main/CHANGES.rst)
- [Commits](https://github.com/collective/icalendar/compare/v6.1.0...v6.3.1)

Updates `flake8` from 7.2.0 to 7.3.0
- [Commits](https://github.com/pycqa/flake8/compare/7.2.0...7.3.0)

Updates `lxml` from 5.4.0 to 6.0.0
- [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-5.4.0...lxml-6.0.0)

---
updated-dependencies:
- dependency-name: google-auth
  dependency-version: 2.40.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
- dependency-name: google-api-python-client
  dependency-version: 2.174.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
- dependency-name: icalendar
  dependency-version: 6.3.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
- dependency-name: flake8
  dependency-version: 7.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pypi-updates
- dependency-name: lxml
  dependency-version: 6.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: pypi-updates
...

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

pyproject.toml

@@ -18,9 +18,9 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.11"
-google-auth = "2.36.0"
-google-api-python-client = "2.154.0"
-icalendar = "6.1.0"
+google-auth = "2.40.3"
+google-api-python-client = "2.174.0"
+icalendar = "6.3.1"
 pytz = "2025.2"
 PyYAML = "6.0.2"
 fire = "0.7.0"
@@ -39,7 +39,7 @@ mypy = ">=1.16.1"
 types-python-dateutil = ">=2.9.0.20250516"
 types-pytz = ">=2025.2.0.20250516"
 types-PyYAML = "^6.0.12.20250516"
-lxml = ">=5.4.0,<6.0.0"
+lxml = ">=5.4.0,<7.0.0"
 
 [tool.poetry.group.docs.dependencies]
 sphinx = ">=8.2,<9.0"