Bump ros-tooling/setup-ros from 0.7.1 to 0.7.3

Bumps [ros-tooling/setup-ros](https://github.com/ros-tooling/setup-ros) from 0.7.1 to 0.7.3.
- [Release notes](https://github.com/ros-tooling/setup-ros/releases)
- [Commits](ros-tooling/setup-ros@0.7.1...0.7.3)

---
updated-dependencies:
- dependency-name: ros-tooling/setup-ros
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -36,7 +36,7 @@ jobs:
         with:
           path: ros_ws/src
 
-      - uses: ros-tooling/setup-ros@0.7.1
+      - uses: ros-tooling/setup-ros@0.7.3
 
       - uses: ros-tooling/action-ros-ci@v0.3
         with: