Update flake8-isort to 4.2.0 (cookiecutter#3828)

Author: pyup-bot

requirements.txt

@@ -7,7 +7,7 @@ binaryornot==0.4.4
 black==22.6.0
 isort==5.10.1
 flake8==4.0.1
-flake8-isort==4.1.2.post0
+flake8-isort==4.2.0
 pre-commit==2.20.0
 
 # Testing

{{cookiecutter.project_slug}}/requirements/local.txt

@@ -29,7 +29,7 @@ sphinx-autobuild==2021.3.14 # https://github.com/GaretJax/sphinx-autobuild
 # Code quality
 # ------------------------------------------------------------------------------
 flake8==4.0.1  # https://github.com/PyCQA/flake8
-flake8-isort==4.1.2.post0  # https://github.com/gforcada/flake8-isort
+flake8-isort==4.2.0  # https://github.com/gforcada/flake8-isort
 coverage==6.4.2  # https://github.com/nedbat/coveragepy
 black==22.6.0  # https://github.com/psf/black
 pylint-django==2.5.3  # https://github.com/PyCQA/pylint-django