Bump ros-tooling/action-ros-ci from 0.3 to 0.4 (#1009)

Bumps [ros-tooling/action-ros-ci](https://github.com/ros-tooling/action-ros-ci) from 0.3 to 0.4.
- [Release notes](https://github.com/ros-tooling/action-ros-ci/releases)
- [Commits](ros-tooling/action-ros-ci@v0.3...v0.4)

---
updated-dependencies:
- dependency-name: ros-tooling/action-ros-ci
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -37,6 +37,6 @@ jobs:
 
       - uses: ros-tooling/setup-ros@v0.7
 
-      - uses: ros-tooling/action-ros-ci@v0.3
+      - uses: ros-tooling/action-ros-ci@v0.4
         with:
           target-ros2-distro: ${{ matrix.ros }}