chore: run main when reopening prs

Author: ArloL

.github/workflows/main.yaml

@@ -2,6 +2,11 @@ name: Main
 
 on:
   push:
+  pull_request:
+    branches:
+    - main
+    types:
+    - reopened
   schedule:
   - cron: "21 5 22 * *"
 permissions: {}