Add dry-run option

action.yml

@@ -174,6 +174,12 @@ inputs:
     description: Enable debug logs
     default: no
 
+  # Enable dry-run mode
+  # Generate image but does not push it (used for testing)
+  dryrun:
+    description: Enable dry-run
+    default: no
+
   # When enabled, any plugins errors will throw
   # By default, it will still generates metrics but renders an error message
   plugins_errors_fatal: