publish-gem.yml in carrierwave-cloudflare-0.2.0

- old
+ new

@@ -3,12 +3,10 @@
 on:
   # Manually publish
   workflow_dispatch:
   # Alternatively, publish whenever changes are merged to the `main` branch.
   push:
-    branches: "*"
-  pull_request:
-    branches: "*"
+    branches: [master]
 
 jobs:
   build:
     name: Build + Publish
     runs-on: ubuntu-latest