Problem: fail to push testground image (#1757)

for more info, https://github.com/crypto-org-chain/cronos/actions/runs/13512121151/job/37754189313

Author: mmsqe

testground/benchmark/overlay.nix

@@ -18,6 +18,7 @@ let
           cprotobuf = [ "setuptools" ];
           flake8-black = [ "setuptools" ];
           flake8-isort = [ "hatchling" ];
+          isort = [ "poetry-core" ];
         };
       in
       lib.mapAttrs (