CHANGE(DevOps): @W-16094414@: Make production-heartbeat job use java 11 (#1521)

Author: stephen-carter-at-sf

.github/workflows/production-heartbeat.yml

@@ -26,6 +26,10 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '11'
       - run: mkdir smoke-test-results
 
       # === Set our environment variables, either using default values or the repo's secrets ===