chore(deps-dev): bump flake8-simplify from 0.14.1 to 0.18.0

Bumps [flake8-simplify](https://github.com/MartinThoma/flake8-simplify) from 0.14.1 to 0.18.0.
- [Release notes](https://github.com/MartinThoma/flake8-simplify/releases)
- [Changelog](https://github.com/MartinThoma/flake8-simplify/blob/master/CHANGELOG.md)
- [Commits](https://github.com/MartinThoma/flake8-simplify/commits/0.18.0)

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

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

requirements-dev.txt

@@ -12,8 +12,6 @@ astroid==2.8.0
     # via pylint
 asttokens==2.0.5
     # via flake8-aaa
-astunparse==1.6.3
-    # via pytkdocs
 attrs==21.2.0
     # via
     #   flake8-bugbear
@@ -25,7 +23,7 @@ autoimport==0.7.3
     # via -r requirements-dev.in
 babel==2.9.1
     # via mkdocs-git-revision-date-localized-plugin
-backports.entry-points-selectable==1.1.0
+backports-entry-points-selectable==1.1.0
     # via virtualenv
 bandit==1.7.0
     # via -r requirements-dev.in
@@ -40,8 +38,6 @@ bleach==4.1.0
     # via
     #   -r requirements.txt
     #   readme-renderer
-cached-property==1.5.2
-    # via pytkdocs
 certifi==2021.5.30
     # via
     #   -r requirements.txt
@@ -163,7 +159,7 @@ flake8-pytest==1.3
     # via -r requirements-dev.in
 flake8-pytest-style==1.5.0
     # via -r requirements-dev.in
-flake8-simplify==0.14.1
+flake8-simplify==0.18.0
     # via -r requirements-dev.in
 flake8-typing-imports==1.10.1
     # via -r requirements-dev.in
@@ -198,22 +194,9 @@ idna==3.2
 importlib-metadata==4.8.1
     # via
     #   -r requirements.txt
-    #   backports.entry-points-selectable
-    #   click
-    #   flake8
-    #   flake8-comprehensions
-    #   flake8-simplify
-    #   flake8-typing-imports
     #   keyring
-    #   markdown
     #   mkdocs
-    #   pep517
-    #   pluggy
-    #   pre-commit
-    #   pytest
-    #   stevedore
     #   twine
-    #   virtualenv
 iniconfig==1.1.1
     # via pytest
 invoke==1.6.0
@@ -486,7 +469,6 @@ six==1.16.0
     # via
     #   -r requirements.txt
     #   asttokens
-    #   astunparse
     #   bandit
     #   bleach
     #   flake8-debugger
@@ -536,23 +518,12 @@ twine==3.4.2
     # via
     #   -r requirements.txt
     #   python-semantic-release
-typed-ast==1.4.3
-    # via
-    #   astroid
-    #   black
-    #   flake8-annotations
-    #   mypy
 typing-extensions==3.10.0.2
     # via
     #   -r requirements.txt
-    #   astroid
     #   black
-    #   gitpython
-    #   importlib-metadata
     #   mypy
     #   pydantic
-    #   pylint
-    #   pytkdocs
 urllib3==1.26.6
     # via
     #   -r requirements.txt
@@ -571,7 +542,6 @@ webencodings==0.5.1
 wheel==0.37.0
     # via
     #   -r requirements.txt
-    #   astunparse
     #   pip-tools
     #   python-semantic-release
 wrapt==1.12.1
@@ -584,7 +554,6 @@ zipp==3.5.0
     # via
     #   -r requirements.txt
     #   importlib-metadata
-    #   pep517
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==21.2.4