Update dependency google-auth to v2.47.0

Author: renovate[bot]

requirements.txt

@@ -4,7 +4,7 @@ setuptools==78.1.1
 
 # bigquery
 google-api-core==2.28.1
-google-auth==2.42.1
+google-auth==2.47.0
 google-cloud-bigquery==3.38.0
 google-cloud-core==2.5.0
 google-crc32c==1.7.1