chore: workflow runs on prs and beta branch

Author: activescott

.github/workflows/build.yaml

@@ -1,6 +1,8 @@
 on:
   push:
-    branches: ["main"]
+    branches: ["main", "beta"]
+  pull_request:
+    branches: ["main", "beta"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -43,6 +45,7 @@ jobs:
           npx semantic-release@24
 
   pages:
+    if: github.ref == 'refs/heads/main'
     needs: build
     runs-on: ubuntu-latest
     permissions: