Migrate to MTP and latest xunit.v3

[Youssef1313]

Description

{A detailed description}

Fixes #{bug number}

Quality checklist

• Your code complies with our Coding Style.
• You've updated unit and/or integration tests for your change, where applicable.
• You've updated documentation for your change, where applicable.
  If your change affects other repositories, such as Documentation, Samples and/or MainSite, add linked PRs here.
• There's an open issue for the PR that you are making. If you'd like to propose a new feature or change, please open an issue to discuss the change or find an existing issue.
• You've added required license files and/or file headers (explaining where the code came from with proper attribution), where code is copied from StackOverflow, a blog, or OSS.

[bart-vmware]

Hi @Youssef1313, thanks for this PR. I've merged support for .NET 10 into the main branch. Would you like to rebase and give it another try? I suppose we don't need the global.json anymore now?