Updated files with 'repo_helper'. (#42)

Co-authored-by: repo-helper[bot] <74742576+repo-helper[bot]@users.noreply.github.com>

Author: repo-helper[bot]

.github/workflows/flake8.yml

@@ -16,7 +16,7 @@ permissions:
 jobs:
   Run:
     name: "Flake8"
-    runs-on: "ubuntu-18.04"
+    runs-on: "ubuntu-20.04"
 
     steps:
       - name: Checkout 🛎️

.pre-commit-config.yaml

@@ -67,7 +67,7 @@ repos:
        - --keep-runtime-typing
 
  - repo: https://github.com/Lucas-C/pre-commit-hooks
-   rev: v1.2.0
+   rev: v1.3.1
    hooks:
     - id: remove-crlf
     - id: forbid-crlf

tox.ini

@@ -50,6 +50,7 @@ cov = py36-sphinx3.2, coverage
 setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
+    SETUPTOOLS_USE_DISTUTILS=stdlib
 deps =
     -r{toxinidir}/tests/requirements.txt
     sphinx3.2: sphinx~=3.2.0
@@ -145,6 +146,7 @@ passenv =
     COV_PYTHON_VERSION
     COV_PLATFORM
     COV_PYTHON_IMPLEMENTATION
+    *
 changedir = {toxinidir}
 deps =
     coverage>=5