Add Black configuration to ensure consistent line length between make lint and pre-commit hook

Author: kris-szlapa

pyproject.toml

@@ -37,6 +37,9 @@ name = "pytorch-cpu"
 url = "https://download.pytorch.org/whl/cpu"
 priority = "supplemental"
 
+[tool.black]
+line-length = 120
+
 [build-system]
 requires = ["poetry>=0.12"]
 build-backend = "poetry.masonry.api"