Bump pytest from 5.3.3 to 5.3.5

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.3.3 to 5.3.5.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@5.3.3...5.3.5)

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

requirements-dev.txt

@@ -2,7 +2,7 @@ black==19.10b0
 coveralls==1.10.0
 ddt==1.2.1
 flake8-import-order==0.18.1
-pytest==5.3.3
+pytest==5.3.5
 pytest-cov==2.8.1
 pytest-json==0.4.0
 pytest-pythonpath==0.7.3