Bump pytest from 5.3.3 to 5.3.4

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.3.3 to 5.3.4.
- [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...5.3.4)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

dev-requirements.txt

@@ -24,7 +24,7 @@ pygithub==1.45
 pylint==2.4.4  # Lint
 pyroma==2.6  # Packaging best practices checker
 pytest-cov==2.8.1  # Measure code coverage
-pytest==5.3.3  # Test runners
+pytest==5.3.4  # Test runners
 sphinx-autodoc-typehints==1.10.3
 sphinxcontrib-spelling==4.3.0
 twine==3.1.1