release: prepare ArduinoHA v3.2.0

.github/workflows/release.yml

@@ -9,8 +9,37 @@ permissions:
   contents: write
 
 jobs:
+  test_harness:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - home_assistant: "2024.11.3"
+          - home_assistant: stable
+    env:
+      HA_VERSION: ${{ matrix.home_assistant }}
+      TEST_HARNESS_EXPECT_DISABLED_CLEANUP: "0"
+      COMPOSE_FILE: tests/ha-test-harness/compose.yaml
+    steps:
+      - uses: actions/checkout@v4
+      - name: Start broker and Home Assistant
+        run: docker compose up -d mqtt homeassistant
+      - name: Check single-to-device migration
+        run: docker compose run --rm tests
+      - name: Restart Home Assistant from retained data
+        run: docker compose restart homeassistant
+      - name: Check retained discovery after restart
+        run: docker compose run --rm -e TEST_HARNESS_MODE=retained-restart tests
+      - name: Collect Home Assistant logs on failure
+        if: failure()
+        run: docker compose logs --no-color homeassistant mqtt
+      - name: Remove test harness volumes
+        if: always()
+        run: docker compose down -v
   publish:
     runs-on: ubuntu-latest
+    needs: test_harness
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5