Update space_robots build to depend on moveit2 build

.github/workflows/docker-build.yml

@@ -40,8 +40,9 @@ jobs:
           name: moveit2
           path: /tmp/moveit2.tar
 
-  build_space_ros:
+  build_space_robots:
     runs-on: ubuntu-20.04
+    needs: build_moveit2
     steps:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2