Update gcloud versions (#363)

Update latest gcloud versions

Author: google-github-actions-bot

data/versions.json

@@ -496,5 +496,6 @@
   "538.0.0",
   "539.0.0",
   "540.0.0",
-  "541.0.0"
+  "541.0.0",
+  "542.0.0"
 ]