[NativeAOT] Use SDK-selected runtime pack version

[Copilot]

NativeAOT publish could pair the SDK-selected ILCompiler with an Android workload-pinned runtime pack. The resulting incompatible System.Private.CoreLib lacked AsyncHelpers.RestoreInlinedFrameContexts.

• Runtime-pack resolution

  • Remove the Android LatestRuntimeFrameworkVersion override.
  • Preserve the android-arm RID extension.
  • Let the SDK select coherent ILCompiler and NativeAOT runtime-pack versions.

• Regression coverage

  • Verify NativeAOT restore ignores the workload runtime version property and uses the SDK-owned version.

• Fixes NativeAOT publish fails when AsyncHelpers.RestoreInlinedFrameContexts is missing #12486

[Copilot]

Pull request overview

This PR addresses NativeAOT publish failures caused by mixing an SDK-selected ILCompiler with an Android workload–pinned NativeAOT runtime pack by removing the Android-side runtime-pack version override so the .NET SDK selects a coherent set of versions. It also adds regression coverage intended to ensure restore is not influenced by the workload-pinned MicrosoftNETCoreAppRefPackageVersion value.

Changes:

• Remove the LatestRuntimeFrameworkVersion override from the NativeAOT KnownRuntimePack entry so runtime-pack versions are SDK-selected.
• Preserve the android-arm RID extension for NativeAOT runtime pack restore.
• Add a new test intended to validate restore behavior with an invalid MicrosoftNETCoreAppRefPackageVersion.

Show a summary per file

File	Description
src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.NativeAOT.targets	Stops overriding NativeAOT runtime-pack version so SDK can select coherent ILCompiler/runtime-pack versions; keeps android-arm RID extension.
src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/NativeAotBuildTests.cs	Adds a regression test for NativeAOT restore version selection behavior.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 1
• Review effort level: Lite

[simonrozsival]

@copilot address the code review and improve the test or add more tests

[Copilot]

@copilot address the code review and improve the test or add more tests

Updated RestoreNativeAot_UsesSdkRuntimePackVersion to parse project.assets.json and assert that the resolved NativeAOT runtime pack's version is not 0.0.0, which actually proves the invalid MicrosoftNETCoreAppRefPackageVersion is ignored for runtime-pack version selection (previously it only checked that Restore succeeded).