CI: Add noble-ci-testing

Author: rhaschke

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ jobs:
           - IMAGE: noble-ci
             NAME: ccov
             TARGET_CMAKE_ARGS: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="--coverage"
-          - IMAGE: noble-ci
+          - IMAGE: noble-ci-testing
             CLANG_TIDY: true
             TARGET_CMAKE_ARGS: >-
               -DCMAKE_BUILD_TYPE=Release