Migrate to xunit v3

[martincostello]

Migrate the tests to xunit v3.

[costellobot]

Device	URL
desktop	https://localhost:50001

Device	URL
mobile	https://localhost:50001

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.46%. Comparing base (394d10b) to head (f14433e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2969   +/-   ##
=======================================
  Coverage   77.46%   77.46%           
=======================================
  Files         123      123           
  Lines        2512     2512           
  Branches      381      381           
=======================================
  Hits         1946     1946           
  Misses        381      381           
  Partials      185      185           

Flag	Coverage Δ
linux	77.46% <ø> (ø)
macos	77.46% <ø> (ø)
windows	77.42% <ø> (ø)

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