[CI Postmortem] Flaky: MonoTests.System.Net.Http.MessageHandlerTest.TestNSUrlSessionHandlerSendClientCertificate

[rolfbjarne]

Summary

Flaky test confirmed by rerun recovery on PR #25183 (same commit 3a0e9a9f).

Test: MonoTests.System.Net.Http.MessageHandlerTest.TestNSUrlSessionHandlerSendClientCertificate
Suite: monotouch-test (macOS)

Rerun Evidence

PR	Build	Result
#25183	13884667	Failed
#25183	13884678	Passed (same commit)

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Filed automatically by CI postmortem analysis.