Bump pytest-cov from 2.11.0 to 2.11.1

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 2.11.0 to 2.11.1.
- [Release notes](https://github.com/pytest-dev/pytest-cov/releases)
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v2.11.0...v2.11.1)

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

Author: dependabot-preview[bot]

dev-requirements.txt

@@ -23,7 +23,7 @@ pyenchant==3.2.0  # Bindings for a spellchecking sytem
 pygithub==1.54.1
 pylint==2.6.0  # Lint
 pyroma==2.6  # Packaging best practices checker
-pytest-cov==2.11.0  # Measure code coverage
+pytest-cov==2.11.1  # Measure code coverage
 pytest==6.2.1  # Test runners
 sphinx-autodoc-typehints==1.11.1
 sphinxcontrib-spelling==7.1.0