chore(deps): update dependency google-cloud-logging to v3.8.0 (#793)

Author: renovate-bot

logging/samples/snippets/requirements.txt

@@ -1,4 +1,4 @@
-google-cloud-logging==3.7.0
+google-cloud-logging==3.8.0
 google-cloud-bigquery==3.12.0
 google-cloud-storage==2.11.0
 google-cloud-pubsub==2.18.4