proper black version aligned with bittensor

Author: ifrit98

.circleci/config.yml

@@ -28,7 +28,7 @@ jobs:
             python -m venv env/
             . env/bin/activate
             python -m pip install --upgrade pip
-            pip install black
+            pip install black==23.7.0
 
       - save_cache:
           name: Save cached black venv