Add cleanup step to Azure Dev Deploy workflow for environment teardown

Author: Pavan-Microsoft

.github/workflows/azure-dev.yml

@@ -52,4 +52,10 @@ jobs:
           fi
           azd config set defaults.subscription "$AZURE_SUBSCRIPTION_ID"
           azd env set AZURE_ENV_OPENAI_LOCATION="$AZURE_ENV_OPENAI_LOCATION"
-          azd up --no-prompt
+          azd up --no-prompt
+
+      - name: Cleanup Deployment
+        if: always()
+        shell: bash
+        run: |
+          azd down --environment "$AZURE_ENV_NAME" --force --purge --no-prompt || true