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

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pytest (changelog)	8.4.0 -> 8.4.1

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Release Notes

pytest-dev/pytest (pytest)

v8.4.1

Compare Source

pytest 8.4.1 (2025-06-17)

Bug fixes

• #​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).

• #​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.

• #​13497: Fixed compatibility with Twisted 25+.

Improved documentation

• #​13492: Fixed outdated warning about faulthandler not working on Windows.

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