chore(deps): update dependency google-auth to v1.16.0 [(#3903)](https://github.com/GoogleCloudPlatform/python-docs-samples/issues/3903)
chore(deps): update dependency google-auth to v1.16.0 [(#3903)](https://github.com/GoogleCloudPlatform/python-docs-samples/issues/3903)


GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples