chore: only run autofix on PRs (#333)

Author: KevinVandy

.github/workflows/autofix.yml

@@ -2,8 +2,6 @@ name: autofix.ci # needed to securely identify the workflow
 
 on:
   pull_request:
-  push:
-    branches: [main, alpha, beta]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.number || github.ref }}