Bug 1631055 - Add AsyncCubebTask thread in media profiler preset r=gregtatum

Differential Revision: https://phabricator.services.mozilla.com/D71376

devtools/client/performance-new/popup/background.jsm.js

@@ -178,6 +178,7 @@ const presets = {
       "MediaTimer",
       "MediaPlayback",
       "MediaDecoderStateMachine",
+      "AsyncCubebTask",
     ],
     duration: 0,
   },