Update nightly-js-sdk.yaml

Author: DellaBitta

.github/workflows/nightly-js-sdk.yaml

@@ -15,6 +15,9 @@
 name: Firebase JS SDK Nightly
 
 on:
+  pull_request:
+    branches:
+      - main
   workflow_dispatch:
 
 jobs:
@@ -28,8 +31,14 @@ jobs:
       uses: actions/setup-node@v3
       with:
         node-version: 20.x
+    - name: Write Project Config
+      env:
+        PROJECT_CONFIG: ${{ secrets.TEST_PROJECT_CONFIG }}
+      run: echo "export const firebaseConfig = $PROJECT_CONFIG;" > src/lib/app_tests/firebase.ts
     - name: Yarn install
       run: yarn
+    - name: Yarn build
+      run: yarn build
     - name: Launch E2E tests workflow
-      run: |
-        echo Hello World (TBD)
+      run: yarn test
+