[Community] @Hzfengsy -> Committer (apache#8908)

CONTRIBUTORS.md

@@ -35,6 +35,7 @@ We do encourage everyone to work anything they are interested in.
 - [Tianqi Chen](https://github.com/tqchen) (PMC): @tqchen - topi, compiler, relay, docs
 - [Wei Chen](https://github.com/wweic): @wweic - runtime, relay, vm
 - [Zhi Chen](https://github.com/zhiics) (PMC): @zhiics - relay, quantization, pass manager
+- [Siyuan Feng](https://github.com/Hzfengsy): @Hzfengsy - tir
 - [Josh Fromm](https://github.com/jwfromm): @jwfromm - frontends, quantization, topi
 - [Yuwei Hu](https://github.com/Huyuwei): @Huyuwei - topi, frontends
 - [Nick Hynes](https://github.com/nhynes): @nhynes: - sgx, rust