chore(deps): update dependency google-cloud-storage to v1.31.2 (#83)

Author: renovate-bot

dataproc/snippets/requirements.txt

@@ -2,5 +2,5 @@ grpcio==1.32.0
 google-auth==1.22.1
 google-auth-httplib2==0.0.4
 google-cloud==0.34.0
-google-cloud-storage==1.30.0
+google-cloud-storage==1.31.2
 google-cloud-dataproc==1.1.0