This is a Skywalker Sound sound effect. It may be considered a stock sound effect, considering it was heard in projects Skywalker Sound didn't work on, and made its debut in Godzilla (1998) as the dinging noises of the Madison Square Garden elevators. Links: https://soundeffects.fandom.com/wiki/SKYWALKER,_DING_-_ELEVATOR_BELL_RING#Audio_Samples