.Net: UnitTests.LocalMapTests.ProcessMapResultWithTargetExtraAsync is flaky

[adamsitnik]

The Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalMapTests.ProcessMapResultWithTargetExtraAsync test started to fail in my PRs that are unrelated to this code path (#10958, #10952):

[xUnit.net 00:00:00.41]     Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalMapTests.ProcessMapResultWithTargetExtraAsync [FAIL]
[xUnit.net 00:00:00.42]       Assert.Equal() Failure: Values differ
[xUnit.net 00:00:00.42]       Expected: 5
[xUnit.net 00:00:00.42]       Actual:   6
[xUnit.net 00:00:00.42]       Stack Trace:
[xUnit.net 00:00:00.42]         D:\a\semantic-kernel\semantic-kernel\dotnet\src\Experimental\Process.UnitTests\Runtime.Local\LocalMapTests.cs(323,0): at Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalMapTests.ProcessMapResultWithTargetExtraAsync()
[xUnit.net 00:00:00.42]         D:\a\semantic-kernel\semantic-kernel\dotnet\src\Experimental\Process.UnitTests\Runtime.Local\LocalMapTests.cs(323,0): at Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalMapTests.ProcessMapResultWithTargetExtraAsync()
[xUnit.net 00:00:00.42]         --- End of stack trace from previous location ---
[xUnit.net 00:00:00.42]     Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalProxyTests.ProcessWithProxyIn4LevelsNestedProcessEmitsTwoTopicsAsync [FAIL]
[xUnit.net 00:00:00.42]       Assert.Equal() Failure: Values differ
[xUnit.net 00:00:00.42]       Expected: 3
[xUnit.net 00:00:00.42]       Actual:   2
[xUnit.net 00:00:00.42]       Stack Trace:
[xUnit.net 00:00:00.42]         D:\a\semantic-kernel\semantic-kernel\dotnet\src\Experimental\Process.UnitTests\Runtime.Local\LocalProxyTests.cs(200,0): at Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalProxyTests.ProcessWithProxyIn4LevelsNestedProcessEmitsTwoTopicsAsync()
[xUnit.net 00:00:00.42]         D:\a\semantic-kernel\semantic-kernel\dotnet\src\Experimental\Process.UnitTests\Runtime.Local\LocalProxyTests.cs(208,0): at Microsoft.SemanticKernel.Process.Runtime.Local.UnitTests.LocalProxyTests.ProcessWithProxyIn4LevelsNestedProcessEmitsTwoTopicsAsync()

Tagging @esttenorio who is the last person to introduce changes (#10825 4 days ago) to this test and might be able to help.