Test case VerifySourcelinks failed

[SimonZhao888]

Failing pipeline run

Test case VerifySourcelinks are failing on the main branch.

Error Message:

Assert.True() Failure
Expected: True
Actual:   False

Stack trace:

at Microsoft.DotNet.SourceBuild.Tests.SourcelinkTests.VerifySourcelinks() in /_/test/Microsoft.DotNet.SourceBuild.Tests/SourcelinkTests.cs:line 68](https://dev.azure.com/dnceng/internal/_git/ddda0dd6-918f-48ba-ba8f-730d9d8c9320?path=%2F_%2Ftest%2FMicrosoft.DotNet.SourceBuild.Tests%2FSourcelinkTests.cs&version=GBmain&_a=contents&line=68&lineEnd=69&lineStartColumn=1&lineEndColumn=1&lineStyle=plain)
at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)