chore(autoware-nightly.repoos): add autoware_internal_msgs (#5613)

add autoware_internal_msgs to nightly

Signed-off-by: Yutaka Kondo <yutaka.kondo@youtalk.jp>

Author: youtalk

autoware-nightly.repos

@@ -3,6 +3,10 @@ repositories:
     type: git
     url: https://github.com/autowarefoundation/autoware_adapi_msgs.git
     version: main
+  core/autoware_internal_msgs:
+    type: git
+    url: https://github.com/autowarefoundation/autoware_internal_msgs.git
+    version: main
   core/autoware.core:
     type: git
     url: https://github.com/autowarefoundation/autoware.core.git