Merge pull request #448 from icon-project/fix/context-dir-selection

fix: docker build context directory selection

.github/workflows/release.yml

@@ -47,7 +47,7 @@ jobs:
         id: build-and-push-relayer
         uses: docker/build-push-action@v6
         with:
-          context: https://github.com/icon-project/relayer-docker.git#relayer
+          context: https://github.com/icon-project/relayer-docker.git#:relayer
           platforms: linux/amd64,linux/arm64
           push: true
           build-args: |