fix: rdu build context

Author: wesjdj

.github/workflows/docker-build.yml

@@ -49,7 +49,8 @@ jobs:
     - name: Build and push Docker image
       uses: docker/build-push-action@v5
       with:
-        context: ci-deployment-cleanup
+        context: .
+        file: ci-deployment-cleanup/Dockerfile
         platforms: linux/amd64,linux/arm64
         push: true
         tags: ${{ steps.meta.outputs.tags }}