Update dependency pytest-cov to v4.1.0 (#185)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [pytest-cov](https://github.com/pytest-dev/pytest-cov)
([changelog](https://pytest-cov.readthedocs.io/en/latest/changelog.html))
| `==4.0.0` -> `==4.1.0` |
[![age](https://badges.renovateapi.com/packages/pypi/pytest-cov/4.1.0/age-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://badges.renovateapi.com/packages/pypi/pytest-cov/4.1.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://badges.renovateapi.com/packages/pypi/pytest-cov/4.1.0/compatibility-slim/4.0.0)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://badges.renovateapi.com/packages/pypi/pytest-cov/4.1.0/confidence-slim/4.0.0)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>pytest-dev/pytest-cov</summary>

###
[`v4.1.0`](https://github.com/pytest-dev/pytest-cov/blob/HEAD/CHANGELOG.rst#&#8203;410-2023-05-24)

[Compare
Source](https://github.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 `#&#8203;558
<https://github.com/pytest-dev/pytest-cov/pull/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 `#&#8203;589
<https://github.com/pytest-dev/pytest-cov/pull/589>`\_.
-   Added support for JSON reporting.
Contributed by Matthew Gamble in `#&#8203;582
<https://github.com/pytest-dev/pytest-cov/pull/582>`\_.
-   Refactored code to use f-strings.
Contributed by Mark Mayo in `#&#8203;572
<https://github.com/pytest-dev/pytest-cov/pull/572>`\_.
-   Fixed a skip in the test suite for some old xdist.
Contributed by a bunch of people in `#&#8203;565
<https://github.com/pytest-dev/pytest-cov/pull/565>`\_.

</details>

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requirements_dev.txt

@@ -8,7 +8,7 @@ pydantic==1.10.8
 pytest==7.3.1
 pytest-aiohttp==1.0.4
 pytest-asyncio==0.21.0
-pytest-cov==4.0.0
+pytest-cov==4.1.0
 pytest-golden==0.2.2
 pytest-mock==3.10.0
 python-dateutil==2.8.2