Update pytest-cov requirement from <4,>=3 to >=3,<5 in /requirements

[dependabot]

Updates the requirements on pytest-cov to permit the latest version.

Changelog

Sourced from pytest-cov's changelog.

4.0.0 (2022-09-28)

Note that this release drops support for multiprocessing.

• --cov-fail-under no longer causes pytest --collect-only to fail Contributed by Zac Hatfield-Dodds in [#511](https://github.com/pytest-dev/pytest-cov/issues/511) <https://github.com/pytest-dev/pytest-cov/pull/511>_.

• Dropped support for multiprocessing (mostly because issue 82408 <https://github.com/python/cpython/issues/82408>_). This feature was mostly working but very broken in certain scenarios and made the test suite very flaky and slow.

  There is builtin multiprocessing support in coverage and you can migrate to that. All you need is this in your .coveragerc::

  [run] concurrency = multiprocessing parallel = true sigterm = true

• Fixed deprecation in setup.py by trying to import setuptools before distutils. Contributed by Ben Greiner in [#545](https://github.com/pytest-dev/pytest-cov/issues/545) <https://github.com/pytest-dev/pytest-cov/pull/545>_.

• Removed undesirable new lines that were displayed while reporting was disabled. Contributed by Delgan in [#540](https://github.com/pytest-dev/pytest-cov/issues/540) <https://github.com/pytest-dev/pytest-cov/pull/540>_.

• Documentation fixes. Contributed by Andre Brisco in [#543](https://github.com/pytest-dev/pytest-cov/issues/543) <https://github.com/pytest-dev/pytest-cov/pull/543>_ and Colin O'Dell in [#525](https://github.com/pytest-dev/pytest-cov/issues/525) <https://github.com/pytest-dev/pytest-cov/pull/525>_.

• Added support for LCOV output format via --cov-report=lcov. Only works with coverage 6.3+. Contributed by Christian Fetzer in [#536](https://github.com/pytest-dev/pytest-cov/issues/536) <https://github.com/pytest-dev/pytest-cov/issues/536>_.

• Modernized pytest hook implementation. Contributed by Bruno Oliveira in [#549](https://github.com/pytest-dev/pytest-cov/issues/549) <https://github.com/pytest-dev/pytest-cov/pull/549>_ and Ronny Pfannschmidt in [#550](https://github.com/pytest-dev/pytest-cov/issues/550) <https://github.com/pytest-dev/pytest-cov/pull/550>_.

3.0.0 (2021-10-04)

Note that this release drops support for Python 2.7 and Python 3.5.

• Added support for Python 3.10 and updated various test dependencies. Contributed by Hugo van Kemenade in [#500](https://github.com/pytest-dev/pytest-cov/issues/500) <https://github.com/pytest-dev/pytest-cov/pull/500>_.
• Switched from Travis CI to GitHub Actions. Contributed by Hugo van Kemenade in [#494](https://github.com/pytest-dev/pytest-cov/issues/494) <https://github.com/pytest-dev/pytest-cov/pull/494>_ and [#495](https://github.com/pytest-dev/pytest-cov/issues/495) <https://github.com/pytest-dev/pytest-cov/pull/495>_.
• Add a --cov-reset CLI option. Contributed by Danilo Šegan in [#459](https://github.com/pytest-dev/pytest-cov/issues/459) <https://github.com/pytest-dev/pytest-cov/pull/459>_.
• Improved validation of --cov-fail-under CLI option. Contributed by ... Ronny Pfannschmidt's desire for skark in [#480](https://github.com/pytest-dev/pytest-cov/issues/480) <https://github.com/pytest-dev/pytest-cov/pull/480>_.
• Dropped Python 2.7 support.

... (truncated)

Commits

• 28db055 Bump version: 3.0.0 → 4.0.0
• 57e9354 Really update the changelog.
• 56b810b Update chagelog.
• f7fced5 Add support for LCOV output
• 1211d31 Fix flake8 error
• b077753 Use modern approach to specify hook options
• 00713b3 removed incorrect docs on data_file.
• b3dda36 Improve workflow with a collecting status check. (#548)
• 218419f Prevent undesirable new lines to be displayed when report is disabled
• 60b73ec migrate build command from distutils to setuptools
• Additional commits viewable in compare view

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