Updated .mailmap

.mailmap

@@ -1,4 +1,5 @@
 Jihyeok Park (jhnaldo) <jhpjhp0223@gmail.com>
+Jihyeok Park (jhnaldo) <jihyeok_park@korea.ac.kr>
 Seungmin An (h2oche) <h2oche22@gmail.com>
 Kanguk Lee (p51lee) <p51lee@kaist.ac.kr>
 Dongjae Lee (duncan020313) <58449555+duncan020313@users.noreply.github.com>
@@ -9,3 +10,8 @@ Jaeho Choi (Maokami) <jaeho@plrg2.kaist.ac.kr>
 Suhyeon Park (PSuHyeon) <99390261+PSuHyeon@users.noreply.github.com>
 Jungdam Choi (dimenerno) <dimenerno@kaist.ac.kr>
 Doehyun Baek (doehyunbaek) <doehyunbaek@gmail.com>
+Sukyoung Ryu (sukyoung) <sryu.cs@kaist.ac.kr>
+Sukyoung Ryu (sukyoung) <sukyoung.ryu@gmail.com>
+Sukyoung Ryu (sukyoung) <sukyoungryu@Sukyoung-Ryu-2.local>
+Chris Ohk (utilForever) <utilForever@gmail.com>
+Yongwook Choi (hyp3rflow) <flow@hrmm.xyz>