chore(deps): update dependency isort to v8

Author: renovate[bot]

pyproject.toml

@@ -14,7 +14,7 @@ dependencies = [
 [dependency-groups]
 dev = [
     "darglint2~=1.8",
-    "isort~=7.0",
+    "isort~=8.0",
     "mypy~=1.14",
     "pyupgrade~=3.19",
     "reuse~=6.0",