ci(test): do not run end-to-end tests in PRs from forks (actions#48)

Author: gr2m

.github/workflows/test.yml

@@ -26,7 +26,7 @@ jobs:
     name: End-to-End
     runs-on: ubuntu-latest
     # do not run from forks, as forks don’t have access to repository secrets
-    if: github.repository_owner == 'actions'
+    if: github.event.pull_request.head.repo.owner.login == github.event.pull_request.base.repo.owner.login
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3