chore(deps): update dependency google-cloud-core to v2 (#904)

Author: renovate-bot

samples/geography/requirements.txt

@@ -14,7 +14,7 @@ google-api-core==1.31.2
 google-auth==1.35.0
 google-cloud-bigquery==2.24.1
 google-cloud-bigquery-storage==2.6.3
-google-cloud-core==1.7.2
+google-cloud-core==2.0.0
 google-crc32c==1.1.2
 google-resumable-media==1.3.3
 googleapis-common-protos==1.53.0