I didn’t go with that version of that line because the action climax has many other lines in her deep voice, so making that one change would seem weird.
I’d love to have the whole movie in her higher pitched voice but it seems virtually impossible to adjust pitch of just her voice and not the rest of the soundtrack.
If you like the line from the trailer then it wouldn’t be too hard to just deepen that one if you don’t want to pitch up everything else.