Make AudioWorkletNodeOptions::processorOptions an optional field per spec.
Make AudioWorkletNodeOptions::processorOptions an optional field per spec.

PiperOrigin-RevId: 355979021

nawawi/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,ChadKillingsworth/closure-compiler,google/closure-compiler,monetate/closure-compiler,google/closure-compiler,nawawi/closure-compiler,monetate/closure-compiler,monetate/closure-compiler,monetate/closure-compiler,google/closure-compiler,ChadKillingsworth/closure-compiler,ChadKillingsworth/closure-compiler,nawawi/closure-compiler,google/closure-compiler