Update xunit.v3 to 3.0.0-pre.25

[Youssef1313]

Description

See #9876 (comment).

@mitchdenny Can you verify if this resolves the "go to test" issues? It's then up to you to wait for a stable version, or merging the prerelease. Also note that this should bring a bit of performance benefit for discovery.

Fixes # (issue)

Checklist

• Is this feature complete?
  • Yes. Ready to ship.
  • No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • Yes
  • No
• Did you add public API?
  • Yes
    • If yes, did you have an API Review for it?
      • Yes
      • No
    • Did you add <remarks /> and <code /> elements on your triple slash comments?
      • Yes
      • No
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
    • If yes, have you done a threat model and had a security review?
      • Yes
      • No
  • No
• Does the change require an update in our Aspire docs?
  • Yes
    • Link to aspire-docs issue (consider using one of the following templates):
      • New (or update) doc-idea template
      • New breaking-change template
      • New diagnostic template
  • No

[Copilot]

Pull Request Overview

This PR updates the xUnit dependency version in Versions.props from 2.0.3 to 3.0.0-pre.25 to address "go to test" issues and improve performance.

• Upgrades xUnit from a stable to a prerelease version.
• Aims to resolve test discovery performance and behavior issues.

Comments suppressed due to low confidence (1)

eng/Versions.props:15

• Ensure that all test projects and build configurations are validated against this prerelease version to avoid potential discrepancies with xUnit v3 APIs.

<XunitV3Version>3.0.0-pre.25</XunitV3Version>

[Youssef1313]

#9895 needs to be merged first.

[danmoseley]

CSC : error CS1705: Assembly 'xunit.v3.runner.inproc.console' with identity 'xunit.v3.runner.inproc.console, Version=3.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c' uses 'Microsoft.Testing.Platform, Version=1.7.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' which has a higher version than referenced assembly 'Microsoft.Testing.Platform' with identity 'Microsoft.Testing.Platform, Version=1.6.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' [/home/runner/work/aspire/aspire/tests/Aspire.EndToEnd.Tests/Aspire.EndToEnd.Tests.csproj]

[mitchdenny]

@davidfowl @captainsafia @joperezr @radical I think we should consider taking this change in the interests for productivity improvements. Combined with the updated MTP library that just merged into main, this prerelease package fixes the Go to Test experience in VSCode which I know that @davidfowl, @captainsafia and I have been struggling with.

I think its safe to take the dependency because I don't think it'll impact any of the packages/templates that we ship.