Use Firebase GitHub Action for deployment

- Replace manual Firebase CLI authentication with official Firebase action
- Simplifies credential handling and deployment process
- Uses FirebaseExtended/action-hosting-deploy for robust deployment

Author: cursoragent

.github/workflows/deploy.yml

@@ -25,12 +25,10 @@ jobs:
       - name: Build Astro site
         run: npm run build
 
-      - name: Create service account file
-        run: echo '${{ secrets.FIREBASE_SERVICE_ACCOUNT }}' > ${{ github.workspace }}/gcloud-service-key.json
-      
       - name: Deploy to Firebase
-        run: |
-          npm install -g firebase-tools
-          firebase deploy --only hosting --non-interactive
-        env:
-          GOOGLE_APPLICATION_CREDENTIALS: ${{ github.workspace }}/gcloud-service-key.json
+        uses: FirebaseExtended/action-hosting-deploy@v0
+        with:
+          repoToken: '${{ secrets.GITHUB_TOKEN }}'
+          firebaseServiceAccount: '${{ secrets.FIREBASE_SERVICE_ACCOUNT }}'
+          channelId: live
+          projectId: notifuse