Bump setuptools from 41.2.0 to 41.4.0 (mozilla#102)

Bumps [setuptools](https://github.com/pypa/setuptools) from 41.2.0 to 41.4.0.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/master/CHANGES.rst)
- [Commits](pypa/setuptools@v41.2.0...v41.4.0)

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

Author: dependabot-preview[bot]

test-requirements.txt

@@ -5,4 +5,4 @@ flake8-coding==1.3.2
 flake8-copyright==0.2.2
 flake8-debugger==3.1.0
 wheel==0.33.6
-setuptools==41.2.0
+setuptools==41.4.0