Wiki already refers to her in the past tense.
Carol Elaine Channing (January 31, 1921 January 15, 2019) was an American actress, singer, dancer and comedian. Notable for starring in Broadway and film musicals, her characters typically radiated a fervent expressiveness and an easily identifiable voice, whether singing or for comedic effect.
I heard anyone can edit Wikipedia.... leaving your edits untouched is a different story..