Bump flake8 from 3.8.2 to 3.9.2 (HunterMcGushion#71)

* Bump flake8 from 3.8.2 to 3.9.2

Bumps [flake8](https://gitlab.com/pycqa/flake8) from 3.8.2 to 3.9.2.
- [Release notes](https://gitlab.com/pycqa/flake8/tags)
- [Commits](https://gitlab.com/pycqa/flake8/compare/3.8.2...3.9.2)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update .pre-commit-config.yaml

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Michael Weiss <code@mweiss.ch>

Author: dependabot[bot]

.pre-commit-config.yaml

@@ -5,6 +5,6 @@ repos:
     - id: black
       language_version: python3.7
 -   repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.2
+    rev: 3.9.2
     hooks:
     -   id: flake8

setup.py

@@ -27,7 +27,7 @@ def readme():
     packages=["docstr_coverage"],
     install_requires=["click", "PyYAML"],
     extras_require={
-        "lint": ["flake8==3.8.2", "black==19.10b0", "isort==5.8.0"],
+        "lint": ["flake8==3.9.2", "black==19.10b0", "isort==5.8.0"],
         "test": ["pytest==5.4.2", "pytest-mock==3.4.0"],
     },
     include_package_data=True,