Update flake8 and dep_checker config.

Author: domdfcoding

pyproject.toml

@@ -49,6 +49,9 @@ show_error_codes = true
 [tool.snippet-fmt]
 directives = [ "code-block",]
 
+[tool.dep_checker]
+allowed_unused = [ "flake8",]
+
 [project.entry-points."flake8.report"]
 github = "flake8_github_actions:GitHubFormatter"
 

tox.ini

@@ -153,33 +153,25 @@ changedir = {toxinidir}
 ignore_errors = True
 skip_install = False
 deps =
-    flake8 >=3.8.2
-    flake8-2020 >= 1.6.0
+    flake8>=3.8.2
+    flake8-2020>=1.6.0
     flake8-builtins>=1.5.3
     flake8-docstrings>=1.5.0
     flake8-dunder-all>=0.1.1
+    flake8-encodings>=0.1.0
     flake8-github-actions>=0.1.0
+    flake8-noqa>=1.1.0
     flake8-pyi>=20.10.0
     flake8-pytest-style>=1.3.0
+    flake8-quotes>=3.3.0
+    flake8-slots>=0.1.0
     flake8-sphinx-links>=0.0.4
     flake8-strftime>=0.1.1
     flake8-typing-imports>=1.10.0
-    flake8-encodings>=0.1.0
-    flake8-slots>=0.1.0
-    git+https://github.com/PyCQA/pydocstyle@5118faa7173b0e5bbc230c4adf628758e13605bf
-    git+https://github.com/domdfcoding/flake8-quotes.git
-    git+https://github.com/domdfcoding/flake8-rst-docstrings.git
     git+https://github.com/domdfcoding/flake8-rst-docstrings-sphinx.git
+    git+https://github.com/domdfcoding/flake8-rst-docstrings.git
+    git+https://github.com/python-formate/flake8-unused-arguments.git@magic-methods
+    pydocstyle>=6.0.0
     pygments>=2.7.1
-commands = python3 -m flake8_rst_docstrings_sphinx flake8_github_actions tests --allow-toolbox --extend-exclude bad_code.py {posargs}
-
-[gh-actions]
-python =
-    3.6: py36, build, mypy
-    3.7: py37, build
-    3.8: py38, build
-    3.9: py39, build
-
-[dep_checker]
-allowed_unused =
-    flake8
+    importlib_metadata<4.5.0; python_version<'3.8'
+commands = python3 -m flake8_rst_docstrings_sphinx flake8_github_actions tests --allow-toolbox --extend-exclude bad_code.py {posargs} {posargs}