chore: update poetry config

poetry.lock

@@ -662,4 +662,4 @@ test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.9"
-content-hash = "bf19d4003d9f24236420a3d87ad449b74e15899ab9040231249d67d57ab1dc9e"
+content-hash = "b0047443e0dfb4ba644c67fcd950b2e17a0d24d3f3f1518c85469d51c5f2b390"

pyproject.toml

@@ -22,7 +22,7 @@ dev = [
     "pytest~=8.3",
     "pylint~=3.3",
     "rope~=1.13",
-    "isort~=5.13",
+    "isort~=6.0",
     "black~=24.4",
 ]
 
@@ -38,7 +38,7 @@ graphviz = ">=0.13.2,<0.21.0"
 jinja2 = ">=2.10,<4.0"
 typed-ast = {version="^1.5.5", markers="python_version<'3.8'"}
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 pytest = "^8.4"
 pylint = "^3.3"
 rope = "^1.13"