Bug 1979491 [wpt PR 53989] - [webaudio-testharness] Migrate biquad-basic.html, a=testonly

Automatic update from web-platform-tests
[webaudio-testharness] Migrate biquad-basic.html

This CL replaces the use of audit.js with testharness.js in the
basic BiquadFilterNode properties test. The logic and structure of
the original test are preserved, including all assertions and
comments.

Bug: 396477778
Change-Id: I751448ad603f60060cc3b5c903bf1b35c3e010ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6720942
Reviewed-by: Michael Wilson <mjwilsonchromium.org>
Reviewed-by: Hongchan Choi <hongchanchromium.org>
Commit-Queue: Punith Nayak <punithbnayakchromium.org>
Cr-Commit-Position: refs/heads/main{#1492396}

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wpt-commits: d6c45114b4d5ef791473b6880e406429e9570269
wpt-pr: 53989

UltraBlame original commit: a468ba1834d16bd9b0c5eb7a46f6b2bcbab9c250

Author: marco-c