chore: bump isort==6.0.0

fix merge conflict

Author: lpm0073

requirements/local.txt

@@ -10,7 +10,7 @@ flake8==7.1.1
 flake8-coding==1.3.2
 pre-commit==4.0.1
 mypy==1.14.1
-mypy==1.13.0
+isort==6.0.0
 pylint
 bandit==1.8.2
 pydocstringformatter==0.7.3