fixed bad dependencies

Author: mcbed

ethercat_driver_ros2_examples/package.xml

@@ -8,9 +8,7 @@
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake</buildtool_depend>
-  <exec_depend>ethercat_driver</exec_depend>
-  <exec_depend>ethercat_interface</exec_depend>
-  <exec_depend>ethercat_generic_plugins</exec_depend>
+  <depend>ethercat_force_sensor</depend>
 
   <export>
     <build_type>ament_cmake</build_type>