[AUDIO_WORKLET] Add interactive heap growing test NFC #24931
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sbc100
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This adds an interactive test to force growing the heap during playback:
Tested with
interactive64andinteractive_2gb(forinteractive64_4gbthe heap is already at the browser's max in testing so can't be grown).It works by alloc'ing and leaking 2/3 of the current size until it can no longer do so. Emscripten regrows its wasm memory in the process, invalidating any data views (see #24891).
Edit: test can now grow from both the main and audio thread.