Only build if the PR branch is local

Author: sjmonson

.github/workflows/development.yml

@@ -156,6 +156,8 @@ jobs:
         run: npm run test:integration
 
   build:
+    # Only build if the PR branch is local
+    if: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
     runs-on: ubuntu-latest
     strategy:
       matrix: