Update xunit-dotnet monorepo

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
xunit	2.6.2 -> 2.9.3
xunit.runner.visualstudio	2.5.4 -> 2.8.2

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Release Notes

xunit/visualstudio.xunit (xunit.runner.visualstudio)

v2.8.2

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v2.8.1

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v2.8.0

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v2.5.8

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v2.5.7

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v2.5.6

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v2.5.5

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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