Enable dynamic_message_tests for galactic

Author: nnmm

rclrs_tests/src/lib.rs

@@ -2,7 +2,7 @@
 
 mod client_service_tests;
 // Disabled in Foxy due to https://github.com/ros2/rosidl/issues/598
-#[cfg(all(not(ros_distro = "foxy"), not(ros_distro = "galactic")))]
+#[cfg(not(ros_distro = "foxy"))]
 mod dynamic_message_tests;
 mod graph_tests;
 mod pub_sub_tests;