chore: update linting workflows to include dev branch in merge_group

.github/workflows/python_test.yml

@@ -1,4 +1,4 @@
-name: test
+name: Python tests
 
 on:
   push:
@@ -13,6 +13,8 @@ on:
       - "poetry.lock"
       - "pyproject.toml"
       - "src/backend/**"
+  merge_group:
+    branches: [dev]
 
 env:
   POETRY_VERSION: "1.8.2"
@@ -43,3 +45,19 @@ jobs:
       - name: Run unit tests
         run: |
           make unit_tests args="-n auto"
+      - name: Test CLI
+        run: |
+          poetry run python -m langflow run --host 127.0.0.1 --port 7860 --backend-only &
+          SERVER_PID=$!
+          # Wait for the server to start
+          timeout 120 bash -c 'until curl -f http://127.0.0.1:7860/health; do sleep 2; done' || (echo "Server did not start in time" && kill $SERVER_PID && exit 1)
+          # Terminate the server
+          kill $SERVER_PID || (echo "Failed to terminate the server" && exit 1)
+          sleep 10 # give the server some time to terminate
+          # Check if the server is still running
+          if kill -0 $SERVER_PID 2>/dev/null; then
+            echo "Failed to terminate the server"
+            exit 1
+          else
+            echo "Server terminated successfully"
+          fi