update emulator test path

Author: lahirumaramba

.github/workflows/nightly.yml

@@ -54,7 +54,7 @@ jobs:
       run: |
         npm install -g firebase-tools@11.30.0
         firebase emulators:exec --project fake-project-id --only auth,database,firestore \
-          'npx mocha test/integration/{auth,database,firestore}.spec.ts --slow 5000 --timeout 20000 --require ts-node/register'
+          'npx mocha test/integration/auth.spec.ts test/integration/database.spec.ts test/integration/firestore.spec.ts --slow 5000 --timeout 20000 --require ts-node/register'
 
     - name: Run integration tests
       run: ./.github/scripts/run_integration_tests.sh