Bump pytest-cov from 2.11.1 to 2.12.1

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 2.11.1 to 2.12.1.
- [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@v2.11.1...v2.12.1)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -13,7 +13,7 @@ pre-commit==2.12.1
 PyGithub==1.54.1
 pytest==6.2.3
 pytest-asyncio==0.15.1
-pytest-cov==2.11.1
+pytest-cov==2.12.1
 pytest-socket==0.4.0
 queueman==0.5
 requests==2.25.1