Bump xunit.v3 to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
xunit.v3	2.0.3 -> 3.0.0

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (97d68ba) to head (68c23ca).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #144   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            2         2           
  Lines           24        24           
  Branches         7         7           
=========================================
  Hits            24        24           

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