Bump setuptools from 41.4.0 to 41.5.0

Bumps [setuptools](https://github.com/pypa/setuptools) from 41.4.0 to 41.5.0.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/master/CHANGES.rst)
- [Commits](pypa/setuptools@v41.4.0...v41.5.0)

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

requirements.txt

@@ -136,5 +136,5 @@ pytest-bdd==3.2.1
 splinter==0.11.0
 pytest-splinter==2.0.1
 pytest-django==3.6.0
-setuptools==41.4.0
+setuptools==41.5.0
 Twisted==19.7.0