Bump pytest-cov from 2.10.1 to 2.11.0

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 2.10.1 to 2.11.0.
- [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@v2.10.1...v2.11.0)

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

Author: dependabot-preview[bot]

poetry.lock

@@ -25,7 +25,7 @@ apispec_webframeworks = "^0.5.2"
 [tool.poetry.dev-dependencies]
 pytest = "^6.2"
 black = {version = "^20.8b1",allow-prereleases = true}
-pytest-cov = "^2.10.1"
+pytest-cov = "^2.11.0"
 jsonschema = "^3.2.0"
 pylint = "^2.6.0"
 sphinx = "^3.4.2"