Comment push in manual_activation.yml

.github/workflows/manual_activation.yml

@@ -1,6 +1,8 @@
 name: Acquire activation file
 on:
-  push: { branches: [main] }
+#uncomment this to make it show once, stop the job in github actions, comment it again, then run using the "Run workflow" button and fill the form with desired unity version 
+#  push: { branches: [main] }
+
   workflow_dispatch:
     inputs:
       unityVersion: