Bump google-cloud-secret-manager in /{{cookiecutter.project_slug}} (#657)

Bumps [google-cloud-secret-manager](https://github.com/googleapis/google-cloud-python) from 2.16.3 to 2.16.4.
- [Release notes](https://github.com/googleapis/google-cloud-python/releases)
- [Changelog](https://github.com/googleapis/google-cloud-python/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-cloud-python@google-cloud-secret-manager-v2.16.3...google-cloud-secret-manager-v2.16.4)

---
updated-dependencies:
- dependency-name: google-cloud-secret-manager
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

{{cookiecutter.project_slug}}/Pipfile

@@ -26,7 +26,7 @@ pyyaml = "~=6.0"
 pillow = "~=10.0.1"
 pytest = "==7.4.2"
 factory-boy = "==3.3.0"
-google-cloud-secret-manager = "==2.16.3"
+google-cloud-secret-manager = "==2.16.4"
 google-auth = "==2.22.0"
 google-cloud-storage = "==2.9.0"
 pipenv = "*"