integration_tests.yml: install java 8 for the test run, overriding java 11 previously installed for the Firestore emulator

Author: dconeybe

.github/workflows/integration_tests.yml

@@ -1146,7 +1146,7 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: 14.x
-      - name: Setup java
+      - name: Setup java 17 (for Firestore emulator)
         uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -1156,6 +1156,11 @@ jobs:
         run: |
           npm install -g firebase-tools
           firebase emulators:start --only firestore --project demo-example &
+      - name: Setup java 8 (for running the tests)
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '8'
       - name: Run Android integration tests on Emulator locally
         timeout-minutes: 120
         if: steps.get-device-type.outputs.device_type == 'virtual'