⬆️ Bump pytest-cov from 2.9.0 to 2.10.0 (#112)

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 2.9.0 to 2.10.0.
- [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@v2.9.0...v2.10.0)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

requirements_test.txt

@@ -7,4 +7,4 @@ mypy==0.780
 pylint==2.5.3
 pytest==5.4.3
 pytest-asyncio==0.12.0
-pytest-cov==2.9.0
+pytest-cov==2.10.0