Update dependency pytest-cov to v4.1.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pytest-cov (changelog)	4.0.0 -> 4.1.0

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Release Notes

pytest-dev/pytest-cov

### [`v4.1.0`](https://togithub.com/pytest-dev/pytest-cov/blob/HEAD/CHANGELOG.rst#​410-2023-05-24) [Compare Source](https://togithub.com/pytest-dev/pytest-cov/compare/v4.0.0...v4.1.0) - Updated CI with new Pythons and dependencies. - Removed rsyncdir support. This makes pytest-cov compatible with xdist 3.0. Contributed by Sorin Sbarnea in `#​558 `\_. - Optimized summary generation to not be performed if no reporting is active (for example, when `--cov-report=''` is used without `--cov-fail-under`). Contributed by Jonathan Stewmon in `#​589 `\_. - Added support for JSON reporting. Contributed by Matthew Gamble in `#​582 `\_. - Refactored code to use f-strings. Contributed by Mark Mayo in `#​572 `\_. - Fixed a skip in the test suite for some old xdist. Contributed by a bunch of people in `#​565 `\_.

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