Fix library names

Signed-off-by: Antón Casas <antoncasas@eprosima.com>

Author: 4ntn

CMakeLists.txt

@@ -77,11 +77,11 @@ if(BUILD_TESTING)
   target_link_libraries(${PROJECT_NAME}_test ${PROJECT_NAME})
   target_link_libraries(${PROJECT_NAME}_test
     rosidl_typesupport_introspection_c::rosidl_typesupport_introspection_c
-    rosidl_generator_c::rosidl_generator_c
+    ${rosidl_generate_interfaces_TARGET}__rosidl_generator_c
     rosidl_runtime_c::rosidl_runtime_c
     rcutils::rcutils
-    std_msgs::std_msgs
-    trajectory_msgs::trajectory_msgs
+    ${std_msgs_TARGETS}
+    ${trajectory_msgs_TARGETS}
   )
 endif()