add voicing released string to GrabDragInteraction.js, don't recreate the Utterance on each release, https://github.com/phetsims/balloons-and-static-electricity/issues/491
add voicing released string to GrabDragInteraction.js, don't recreate the Utterance on each release, https://github.com/phetsims/balloons-and-static-electricity/issues/491

phetsims/scenery-phet,phetsims/scenery-phet,phetsims/scenery-phet