Add workflow for assets

Signed-off-by: Luca Della Vedova <lucadv@intrinsic.ai>

.github/workflows/build.yaml

@@ -14,6 +14,8 @@ jobs:
     uses: open-rmf/rmf_ci_templates/.github/workflows/reusable_build.yaml@main
     with:
       # NOTE: Avoid adding comments in the package lines, this can break some of the called scripts in github actions
+      # Assets containing no tests caused a build failure in buildfarm, add as a regression test https://github.com/open-rmf/rmf_traffic_editor/pull/495
       packages: |
         rmf_traffic_editor
-        rmf_traffic_editor_test_maps
+        rmf_traffic_editor_assets
+        rmf_traffic_editor_test_maps