Add .NET version 10.0.x to CI workflow

[304NotModified]

🤔 What's changed?

⚡️ What's your motivation?

🏷️ What kind of change is this?

• :book: Documentation (improvements without changing code)
• :bank: Refactoring/debt/DX (improvement to code design, tooling, etc. without changing behaviour)
• :bug: Bug fix (non-breaking change which fixes a defect)
• :zap: New feature (non-breaking change which adds new behaviour)
• :boom: Breaking change (incompatible changes to the API)

♻️ Anything particular you want feedback on?

📋 Checklist:

• [ ] I've changed the behaviour of the code
  • [ ] I have added/updated tests to cover my changes.
• [ ] My change requires a change to the documentation.
  • [ ] I have updated the documentation accordingly.
• [ ] Users should know about my change
  • [ ] I have added an entry to the "[vNext]" section of the CHANGELOG, linking to this pull request & included my GitHub handle to the release contributors list.

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[304NotModified]

Testing with VSTest target is no longer supported by Microsoft.Testing.Platform on .NET 10 SDK and later.

@copilot help with this error

[Copilot]

@304NotModified I've opened a new pull request, #944, to work on those changes. Once the pull request is ready, I'll request review from you.

[304NotModified]

@copilot build still fails. Fix and run build yourself. Fix until build is green.

[Copilot]

@304NotModified I've opened a new pull request, #946, to work on those changes. Once the pull request is ready, I'll request review from you.

[gasparnagy]

Because of #918 , this PR becomes obsolete. @304NotModified I have added your tag to the changelog to acknowledge your efforts to fix this.

[304NotModified]

Thanks @gasparnagy, I needed more TUnit knowledge I guess. But happy it's merged and so I also merged https://github.com/reqnroll/Reqnroll.VisualStudio/pull/138