Only run Cirrus for main branch pushes

Author: IvanIsCoding

.github/workflows/main.yml

@@ -191,6 +191,7 @@ jobs:
     name: FreeBSD (Cirrus CI)
     needs: [build, format, clippy]
     runs-on: ubuntu-latest
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
       - uses: actions/checkout@v4