[Community] Propose @April01xxx as sig SQLEngine Committer

Hi team, I would like to propose @April01xxx as sig SQLEngine Committer. https://gitee.com/opengauss/tc/pulls/104 @April01xxx has already made lots of contributions in openGauss Community from 2020-11-09. He is good at sig SQLEngine and sig DCF. You can find more contributions under his gitee account. https://gitee.com/April01xxx Feel free to give a feedback for this proposal. Thanks very much. Best Regards, Edison Xiang