Skip SSL key log test for OpenSSL 3.5+

[rokonec]

Context

OpenSSL 3.5.0 supports SSLKEYLOGFILE with just an environment variable, which is less strict than .NET's requirements. There's no way to check if this feature is enabled in the OpenSSL library, so we should disable the test based on the OpenSSL version for now.

Affected tests

System.Net.Security.Tests.SslStreamRemoteExecutorTests.SslKeyLogFile_IsCreatedAndFilled

Testing

Fix verified on previously stable failing CentOS 10 docker image mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream-10-helix-amd64

Notes

#116473 has been create to revisit it in future, lets say a year

[Copilot]

Pull Request Overview

This PR skips the SSL key log file creation test when running against OpenSSL 3.5 or later, addressing false failures due to the library’s relaxed behavior.

• Updated SslStreamRemoteExecutorTests to bypass the test for OpenSSL versions 3.5+
• Added inline comments referencing the change and future revisit via issue #116473

Comments suppressed due to low confidence (1)

src/libraries/System.Net.Security/tests/FunctionalTests/SslStreamRemoteExecutorTests.cs:37

• Consider using an explicit test skip attribute or helper instead of an early return to indicate that the test is intentionally skipped for OpenSSL 3.5+ scenarios. This approach can improve clarity in test reports and maintain consistency with other skipped tests.

if (PlatformDetection.IsOpenSslSupported && PlatformDetection.OpenSslVersion >= new Version(3, 5, 0))

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[rzikm]

LGTM

[rokonec]

/backport to release/9.0-staging

[github-actions]

Started backporting to release/9.0-staging: https://github.com/dotnet/runtime/actions/runs/15679821163