Remove Jammy CI in main branch

Signed-off-by: Jose Luis Rivero <[email protected]>

.github/workflows/ci.yml

@@ -15,25 +15,6 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  jammy-ci:
-    runs-on: ubuntu-latest
-    name: Ubuntu Jammy CI
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - uses: actions/setup-python@v3
-      - uses: pre-commit/[email protected]
-        with:
-          extra_args: --all-files
-      - name: Compile and test
-        id: ci
-        uses: gazebo-tooling/action-gz-ci@jammy
-        with:
-          # per bug https://github.com/gazebosim/gz-sim/issues/1409
-          cmake-args: '-DCMAKE_INSTALL_PREFIX=/usr -DBUILD_DOCS=OFF'
-          codecov-enabled: true
-          cppcheck-enabled: true
-          cpplint-enabled: true
   noble-ci:
     runs-on: ubuntu-latest
     name: Ubuntu Noble CI