Exclude SFrameSenderTransform & SFrameReceiverTransform from Interop 2025

[nt1m]

Test List

https://wpt.fyi/results/webrtc-encoded-transform/idlharness.https.window.html%3Fexclude%3D(SFrameDecrypterStream%7CSFrameEncrypterStream%7CSFrameTransform.*)?label=experimental&label=master&aligned&view=interop&q=label%3Ainterop-2025-webrtc

Rationale

It got added in web-platform-tests/wpt@6b1a8d0 without being blocked by CODEOWNERS.

[nt1m]

web-platform-tests/wpt#57035
web-platform-tests/wpt-metadata#8376

cc @guidou @jan-ivar

[dholbert]

This is all the new !OWN_PROPERTY(SFrameSenderTransform) cross-browser test-failures in that webrtc-encoded-transform/idlharness.https.window.html test, right? Assuming so & assuming this excludes or addresses those failures, this seems fine to me.