chore(deps): update dependency google-cloud-kms to v2.5.0 (#101)

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

Author: renovate-bot

privateca/snippets/requirements.txt

@@ -1,2 +1,2 @@
 google-cloud-private-ca==1.0.3
-google-cloud-kms==2.4.3
+google-cloud-kms==2.5.0