chore(deps): update dependency isort to v8

Author: renovate[bot]

poetry.lock

@@ -35,7 +35,7 @@ jsonschema = "^4.25.1"
 
 [tool.poetry.group.dev.dependencies]
 black = "^26.0.0"
-isort = ">=7.0.0,<7.1.0"
+isort = ">=8.0.0,<8.1.0"
 mypy = "^1.18.2"
 pylint = "^4.0.0"
 types-pyyaml = "^6.0.12.20250915"