Refactor: Remove imageName parameter from devcontainer test job

Signed-off-by: Ihor Dvoretskyi <[email protected]>

Author: idvoretskyi

.github/workflows/ci.yml

@@ -58,7 +58,6 @@ jobs:
       - name: Test devcontainer functionality
         uses: devcontainers/[email protected]
         with:
-          imageName: ghcr.io/idvoretskyi/dev-test
           push: never
           runCmd: |
             # Test basic tools are available