Skip preview job on forks

Author: Westbrook

.github/workflows/test.yml

@@ -22,7 +22,8 @@ jobs:
       - run: npm test
 
       - name: Deploy Preview
-        if: ${{github.event_name == 'pull_request' && !(github.actor == 'dependabot[bot]' || github.actor == 'renovate[bot]')}}
+        # Only run this job if the repository is NOT a fork
+        if: ${{ github.event.pull_request.head.repo.full_name == github.repository && !(github.actor == 'dependabot[bot]' || github.actor == 'renovate[bot]') }}
         uses: JamesIves/[email protected]
         with:
           branch: gh-pages