chore: fix e2e tests condition in workflow yml (#652)

Author: dphang

.github/workflows/CI.yml

@@ -28,12 +28,12 @@ jobs:
       - run: yarn integration
       - name: Wait for existing workflow to complete before e2e tests
         # Note: we only run e2e tests once (using the 12.x version in matrix) and only if this PR is not from a fork
-        if: ${{ matrix.node-version == '12.x' && github.event.pull_request.head.repo.full_name == github.repository }}
+        if: ${{ matrix.node-version == '12.x' && (github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository)) }}
         uses: softprops/turnstyle@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Run e2e tests
-        if: ${{ matrix.node-version == '12.x' && github.event.pull_request.head.repo.full_name == github.repository }}
+        if: ${{ matrix.node-version == '12.x' && (github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository)) }}
         env:
           AWS_ACCESS_KEY_ID: ${{ secrets.AWS_AT }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_ST }}