A second semester is on the way for “Abbott Elementary.” The hit ABC sitcom — created by and starring Quinta Brunson — has been renewed for a second season, the network confirmed. The school-set series’ principal Ava Coleman, played by comedic actress Janelle James, shared the news in memo form on Instagram Monday. “The camera crew I hired to showcase all that I’ve made happen at our beautiful school thinks I’m a star,” the sarcastic and self-absorbed character wrote. “With that said, it is with great pleasure that I share they’ll be returning for the 2022-2023 school year! That’s right — Abbo…