Apply to become a maintainer (go-gitea#13201)

Dear gitea's managers and contributors, I apply to become a
maintainer of gitea. I'm interested in this project and has
sent prs to gitea also. I will do more things to make gitea
better and reviw other contributors's pr in my free time.
Thanks.

Signed-off-by: a1012112796 <1012112796@qq.com>

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

MAINTAINERS

@@ -37,3 +37,4 @@ Mura Li <typeless@ctli.io> (@typeless)
 jaqra <jaqra@hotmail.com> (@jaqra)
 David Svantesson <davidsvantesson@gmail.com> (@davidsvantesson)
 CirnoT <gitea.m@i32.pl> (@CirnoT)
+a1012112796 <1012112796@qq.com> (@a1012112796)