chore(deps): update dependency pytest to v8.4.1 (#819)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [pytest](https://redirect.github.com/pytest-dev/pytest)
([changelog](https://docs.pytest.org/en/stable/changelog.html)) |
`==8.4.0` -> `==8.4.1` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/pytest/8.4.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/pytest/8.4.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/pytest/8.4.0/8.4.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/pytest/8.4.0/8.4.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>pytest-dev/pytest (pytest)</summary>

###
[`v8.4.1`](https://redirect.github.com/pytest-dev/pytest/releases/tag/8.4.1)

[Compare
Source](https://redirect.github.com/pytest-dev/pytest/compare/8.4.0...8.4.1)

### pytest 8.4.1 (2025-06-17)

#### Bug fixes

-
[#&#8203;13461](https://redirect.github.com/pytest-dev/pytest/issues/13461):
Corrected `_pytest.terminal.TerminalReporter.isatty` to support
    being called as a method. Before it was just a boolean which could
    break correct code when using `-o log_cli=true`).

-
[#&#8203;13477](https://redirect.github.com/pytest-dev/pytest/issues/13477):
Reintroduced `pytest.PytestReturnNotNoneWarning`{.interpreted-text
role="class"} which was removed by accident in pytest
\[8.4]{.title-ref}.

This warning is raised when a test functions returns a value other than
`None`, which is often a mistake made by beginners.

See `return-not-none`{.interpreted-text role="ref"} for more
information.

-
[#&#8203;13497](https://redirect.github.com/pytest-dev/pytest/issues/13497):
Fixed compatibility with `Twisted 25+`.

#### Improved documentation

-
[#&#8203;13492](https://redirect.github.com/pytest-dev/pytest/issues/13492):
Fixed outdated warning about `faulthandler` not working on Windows.

</details>

---

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requirements-test.txt

@@ -1,4 +1,4 @@
-pytest==8.4.0
+pytest==8.4.1
 pytest-pep8==1.0.6
 pytest-cov==6.2.1
 pytest-aiohttp==1.1.0