Github removed the git protocol (#112)

https://github.blog/2021-09-01-improving-git-protocol-security-github/

.pre-commit-config.yaml

@@ -26,7 +26,7 @@ repos:
       - id: flake8
         language_version: python3
         additional_dependencies: [flake8-typing-imports==1.3.0]
-  - repo: git://github.com/FalconSocial/pre-commit-mirrors-pep257
+  - repo: https://github.com/FalconSocial/pre-commit-mirrors-pep257
     rev: v0.3.3
     hooks:
       - id: pep257