chore(deps): update dependency google-cloud-bigquery to v2.28.0 (#264)

Author: renovate-bot

dlp/snippets/requirements.txt

@@ -2,4 +2,4 @@ google-cloud-dlp==3.2.3
 google-cloud-storage==1.42.2
 google-cloud-pubsub==2.8.0
 google-cloud-datastore==2.1.6
-google-cloud-bigquery==2.27.1
+google-cloud-bigquery==2.28.0