This sound is from Happy Birthday Soundboard

Warner Chappell Music had previously claimed copyright on the song in the US and collected licensing fees for its use in 2015 the copyright claim was declared invalid. Warner Chappel agreed to pay back $14 million in licensing fees in 2015.
See also: Happy Birthday, Happy Birthday, Mr. President, Happy Birthday (Stevie Wonder song), Happy Birthday (2022 Indian film), Happy Birthday to Me (film), and Birthday.