chore(pip/dev)(deps-dev): bump coverage from 5.5 to 6.2 (#216)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 5.5 to 6.2.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@coverage-5.5...6.2)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -24,7 +24,7 @@ doublex = "^1.9.2"
 doublex-expects = "^0.7.1"
 expects = "^0.9.0"
 flake8 = "^3.8.4"
-coverage = "^5.3"
+coverage = "^6.2"
 
 [tool.poetry.extras]
 docs = ["sphinx", "sphinx-material"]