chore(deps): update dependency google-auth to v2.47.0

Author: renovate-bot

samples/cloud-client/snippets/requirements.txt

@@ -1,6 +1,6 @@
 google-cloud-compute==1.40.0
 google-cloud-storage==3.7.0
-google-auth==2.45.0
+google-auth==2.47.0
 pytest===8.4.2; python_version == '3.9'
 pytest==9.0.2; python_version > '3.9'
 boto3>=1.26.0