Prepare Linux native Web Serial tests after pyserial

.github/workflows/run-unit-tests.yml

@@ -271,7 +271,9 @@ jobs:
           python3 -B test/test_esp32_full_power_lifecycle.py
 
       - name: Verify official web console framing and power-saving idle sessions
-        run: python3 -B test/test_official_web_console.py -v
+        run: |
+          python3 -B test/test_official_web_console.py -v
+          python3 -B test/test_hil_linux_web_serial.py -v
 
       - name: Verify official setup GUI initial time command deadline
         run: python3 -B test/test_official_config_gui.py -v