chore(deps): update dependency google-cloud-bigquery-storage to v2.2.1 (#485)

Author: renovate-bot

samples/snippets/requirements.txt

@@ -1,5 +1,5 @@
 google-cloud-bigquery==2.6.2
-google-cloud-bigquery-storage==2.1.0
+google-cloud-bigquery-storage==2.2.1
 google-auth-oauthlib==0.4.2
 grpcio==1.35.0
 ipython==7.16.1; python_version < '3.7'