deps: update dependency coverage to >=7.4,<7.5 (#348)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [coverage](https://togithub.com/nedbat/coveragepy) | `>=7.3,<7.4` ->
`>=7.4,<7.5` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/coverage/7.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/coverage/7.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/coverage/7.3.4/7.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/coverage/7.3.4/7.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>nedbat/coveragepy (coverage)</summary>

###
[`v7.4.0`](https://togithub.com/nedbat/coveragepy/blob/HEAD/CHANGES.rst#Version-740--2023-12-27)

[Compare
Source](https://togithub.com/nedbat/coveragepy/compare/7.3.4...7.4.0)

- In Python 3.12 and above, you can try an experimental core based on
the new
    :mod:`sys.monitoring <python:sys.monitoring>` module by defining a
`COVERAGE_CORE=sysmon` environment variable. This should be faster,
though
plugins and dynamic contexts are not yet supported with it. I am very
    interested to hear how it works (or doesn't!) for you.

.. \_changes\_7-3-4:

</details>

---

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setup.py

@@ -51,7 +51,7 @@
             "watchdog>=3.0.0,<3.1",
         ],
         "test": [
-            "coverage>=7.3,<7.4",
+            "coverage>=7.4,<7.5",
             "pylint>=3,<3.1",
             "pytest>=7.4,<7.5",
             "mypy>=1.8,<1.9",