maccatalyst/iossimulator Debug CoreCLR work items fail with PACKAGE_NOT_FOUND (missing Info.plist)

## Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1362636
Build error leg or test failing: Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.WorkItemExecution, System.ComponentModel.Primitives.Tests.WorkItemExecution
Pull request: https://github.com/dotnet/runtime/pull/125441

Affected CI jobs: build_maccatalyst_arm64_Debug_AllSubsets_CoreCLR_Smoke_Debug, build_iossimulator_arm64_Debug_AllSubsets_CoreCLR_Smoke

## Error Message

Fill the error message using [step by step known issues guidance](https://github.com/dotnet/arcade/blob/main/Documentation/Projects/Build%20Analysis/KnownIssueJsonStepByStep.md).

```json
{
"ErrorMessage": "Failed to find Info.plist inside the app bundle",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
```

## Summary

On maccatalyst-arm64 Debug CoreCLR and iossimulator-arm64 Debug CoreCLR legs, XHarness reports exit code 4 (PACKAGE_NOT_FOUND) because it cannot find Info.plist inside the built app bundle. This prevents the test app from launching.

4 work items affected:
- Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests (both legs)
- System.ComponentModel.Primitives.Tests (both legs)

> [!NOTE]
> This issue was filed with the assistance of GitHub Copilot.

### Known issue validation
**Build: :mag_right:** https://dev.azure.com/dnceng-public/public/_build/results?buildId=1362636
**Error message validated:** `[Failed to find Info.plist inside the app bundle`]
**Result validation:** :white_check_mark: Known issue matched with the provided build.
**Validation performed at:** 4/2/2026 10:17:21 AM UTC

### Report
#### Summary
|24-Hour Hit Count|7-Day Hit Count|1-Month Count|
|---|---|---|
|0|0|0|