The change from https://github.com/dotnet/runtime/pull/88280 caused an issue when discovering the test:
```
System.InvalidOperationException : An appropriate member 'ManualTestsEnabled' could not be found. The conditional method needs to be a static method, property, or field on the type System.Formats.Tar.Tests.ManualTestsAsync or any ancestor, of any visibility, accepting zero arguments, and having a return type of Boolean.
```
// Fixes error xUnit1015: MemberData needs to be in the same class
=> ManualTests.WriteEntry_LongFileSize_TheoryData();
- [ConditionalTheory(nameof(ManualTests.ManualTestsEnabled))]
+ [ConditionalTheory(typeof(ManualTests), nameof(ManualTests.ManualTestsEnabled))]
[MemberData(nameof(WriteEntry_LongFileSize_TheoryDataAsync))]
[SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS | TestPlatforms.Android | TestPlatforms.Browser, "Needs too much disk space.")]
public async Task WriteEntry_LongFileSizeAsync(TarEntryFormat entryFormat, long size, bool unseekableStream)