[test] Existing AudioWorklet futex test moved to browser tests (now audio works)

[cwoffenden]

Now that the audio tests are running in CI (see #23665) this existing AudioWorklet/futex test can be moved from interactive to browser:

https://github.com/emscripten-core/emscripten/blob/32832575e0d200afcccd1d892ff3555baf54bc83/test/webaudio/audioworklet_emscripten_futex_wake.cpp

It's had the bare minimum to enable it to compile but is otherwise broken and therefore disabled. The issue is here #22962.

A fix is already done with more advanced lock tests, but needs this to land first to get things in the right order.

To confirm the test is broken, comment out the @disabled in line 5518 and run with:

test/runner browser.test_audio_worklet_emscripten_futex_wake

It will fail with:

test.js:1003 Uncaught RuntimeError: Aborted(Assertion failed: emscripten_is_main_browser_thread(), at: /emsdk/emscripten/system/lib/pthread/emscripten_futex_wait.c,26,futex_wait_main_browser_thread)
    at abort (test.js:1003:11)
    at ___assert_fail (test.js:1945:7)
    at test.wasm:0x10a8
    at test.wasm:0xf34
    at test.wasm:0xa78
    at WasmAudioWorkletProcessor.process (test.aw.js:113:34)

@sbc100 This is the last of my planned additions to the audio tests, next are the fixes.

[cwoffenden]

The failing test_sse4_2 test is unrelated.