Update gcloud versions (#362)

Update latest gcloud versions

Author: google-github-actions-bot

data/versions.json

@@ -495,5 +495,6 @@
   "537.0.0",
   "538.0.0",
   "539.0.0",
-  "540.0.0"
+  "540.0.0",
+  "541.0.0"
 ]