Removed ros_babel_fish checkout in workflow. (#6)

* Removed ros_babel_fish checkout in workflow.

It's now available in the official distros.
A checkout is no longer necessary.

* Removed foxy.

Since it's EOL, I can't add ros_babel_fish as binary anymore, so no more testing for it.

.github/workflows/lint-and-build.yaml

@@ -37,15 +37,10 @@ jobs:
     strategy:
       matrix:
         setup:
-          - rosdistro: foxy
-            os: ubuntu-20.04
-            babel_fish: foxy
           - rosdistro: jazzy
             os: ubuntu-latest
-            babel_fish: jazzy
           - rosdistro: rolling
             os: ubuntu-latest
-            babel_fish: jazzy
     steps:
       - name: install build tools
         run: |
@@ -54,11 +49,6 @@ jobs:
       - uses: actions/checkout@v4
         with:
           path: src/qml_ros2_plugin
-      - uses: actions/checkout@v4
-        with:
-          path: src/ros2_babel_fish
-          repository: 'LOEWE-emergenCITY/ros2_babel_fish'
-          ref: ${{ matrix.setup.babel_fish }}
       - name: rosdep
         run: |
           rosdep update --rosdistro ${{ matrix.setup.rosdistro }} --include-eol-distros
@@ -71,4 +61,4 @@ jobs:
         run: |
           source /opt/ros/${{ matrix.setup.rosdistro }}/setup.bash
           colcon test --packages-select qml_ros2_plugin
-          colcon test-result --verbose
+          colcon test-result --verbose