How To Deal With Petty Coworkers
Publicly admit it and amend it
The best thing to do when a petty coworker publicly brings up one of your mistakes is to own it, apologize to the team, and announce how you plan on fixing it. The petty coworker is expecting you to pick a fight with them about bringing the mistake up. They were hoping to provoke you, to make you behave as immaturely as they do. If you respond maturely, you really just make them look silly.