test: update all test dependencies

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
certifi	==2026.1.4 → ==2026.2.25
isort (changelog)	==7.0.0 → ==8.0.0
uvicorn (changelog)	==0.40.0 → ==0.41.0

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Release Notes

certifi/python-certifi (certifi)

v2026.2.25

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PyCQA/isort (isort)

v8.0.0

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• Removed --old-finders and --magic-placement flags and old_finders configuration option. The legacy finder logic that relied on environment introspection has been removed (#​2445) @​joao-faria-dev
  • Update the plone profile to not clash with black (#​2456) @​ale-rt

Kludex/uvicorn (uvicorn)

v0.41.0: Version 0.41.0

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Added

• Add --limit-max-requests-jitter to stagger worker restarts (#​2707)
• Add socket path to scope["server"] (#​2561)

Changed

• Rename LifespanOn.error_occured to error_occurred (#​2776)

Fixed

• Ignore permission denied errors in watchfiles reloader (#​2817)
• Ensure lifespan shutdown runs when should_exit is set during startup (#​2812)
• Reduce the log level of 'request limit exceeded' messages (#​2788)

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New Contributors

• @​t-kawasumi made their first contribution in #​2776
• @​fardyn made their first contribution in #​2800
• @​ewie made their first contribution in #​2807
• @​shevron made their first contribution in #​2788
• @​jonashaag made their first contribution in #​2707

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Full Changelog: Kludex/uvicorn@0.40.0...0.41.0

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