chore(deps): update dependency google-cloud-storage to v2.7.0 (#94)

Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: renovate-bot

packages/google-cloud-optimization/samples/snippets/requirements.txt

@@ -1,2 +1,2 @@
 google-cloud-optimization==1.1.3
-google-cloud-storage==2.6.0
+google-cloud-storage==2.7.0