CI: download hold binary

.github/workflows/ci.yml

@@ -153,6 +153,13 @@ jobs:
             uv run python -m grpc_tools.protoc --proto_path="proto" --python_out="tests" --grpc_python_out="tests" proto/*.proto
           fi
 
+          url=$(curl -f --retry 3 --retry-delay 3 -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" https://api.github.com/repos/BoltzExchange/hold/releases/latest \
+            | jq '.assets[] | select(.name | endswith("linux-amd64.tar.gz")) | .browser_download_url' \
+            | tr -d '\"')
+          wget $url
+          tar -xvf ${url##*/} -C tests
+          mv "tests/build/hold-linux-amd64" "tests/hold"
+
           cargo build
           cargo test
         fi