Update to isort and black 24

tox_poetry_installer/hooks/_tox_on_install_helpers.py

@@ -1,4 +1,5 @@
 """Helper functions for the :func:`tox_on_install` hook"""
+
 import collections
 import concurrent.futures
 import contextlib
@@ -20,6 +21,7 @@ from tox_poetry_installer import constants
 from tox_poetry_installer import exceptions
 from tox_poetry_installer import logger
 
+
 if typing.TYPE_CHECKING:
     from tox_poetry_installer import _poetry