chore(deps): update dependency isort to v7

Author: renovate[bot]

pyproject.toml

@@ -46,7 +46,7 @@ build-backend = "uv_build"
 [dependency-groups]
 dev = [
     "pytest~=8.3",
-    "isort~=6.0",
+    "isort~=7.0",
     "csvkit~=2.0",
     "ipython~=8.31",
     "black~=25.9",