Fix the CI for the new driver

Steps:
- Add missing python dependencies
- Drop the `IRON` workflows. That's EOL by now.
- Fix `mypy` warnings for duplicate modules
- Fix the setup fixture. That would require a sourced environment

Author: stefanscherzinger

.github/workflows/industrial_ci_iron_action.yml

@@ -7,6 +7,11 @@
   <maintainer email="[email protected]">stefan</maintainer>
   <license>GPL-3.0-or-later</license>
 
+  <depend>rclpy</depend>
+  <depend>launch</depend>
+  <depend>launch_ros</depend>
+
+  <test_depend>launch_pytest</test_depend>
   <test_depend>ament_copyright</test_depend>
   <test_depend>python3-pytest</test_depend>
   <test_depend>schunk_egu_egk_gripper_dummy</test_depend>

schunk_gripper_driver/__init__.py

@@ -34,9 +34,6 @@
 @pytest.fixture(scope="module")
 def isolated():
     rclpy.init()
-    # Make sure all test nodes find each other
-    subprocess.run(["ros2", "daemon", "stop"])
-    subprocess.run(["ros2", "daemon", "start"])
     yield
     rclpy.shutdown()