Fix Dockerfile path in CI workflow for consistency

Author: MAminSFV

.github/workflows/cd.yml

@@ -56,7 +56,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
-          file: ./devcontainer/Dockerfile
+          file: ./.devcontainer/Dockerfile
           target: clang-base
           push: true
           tags: |