removed jammy github action workflow

Signed-off-by: Ian Chen <[email protected]>

.github/workflows/ci.yml

@@ -9,25 +9,16 @@ on:
       - 'main'
 
 jobs:
-  jammy-ci:
+  noble-ci:
     runs-on: ubuntu-latest
-    name: Ubuntu Jammy CI
+    name: Ubuntu Noble CI
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Compile and test
         id: ci
-        uses: gazebo-tooling/action-gz-ci@jammy
+        uses: gazebo-tooling/action-gz-ci@noble
         with:
           codecov-enabled: true
           cpplint-enabled: true
           doxygen-enabled: true
-  noble-ci:
-    runs-on: ubuntu-latest
-    name: Ubuntu Noble CI
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Compile and test
-        id: ci
-        uses: gazebo-tooling/action-gz-ci@noble