chore(deps): update dependency google-cloud-monitoring to v2.11.1 (#281)

Co-authored-by: Anthonios Partheniou <[email protected]>

Author: renovate-bot

privateca/snippets/requirements.txt

@@ -1,3 +1,3 @@
 google-cloud-private-ca==1.4.0
 google-cloud-kms==2.12.0
-google-cloud-monitoring==2.11.0
+google-cloud-monitoring==2.11.1