Merge pull request #31206 from jihoon-seo/220105_Add_jihoon-seo_as_ko-owner

Add jihoon-seo to sig-docs-ko-owners

Author: k8s-ci-robot

OWNERS_ALIASES

@@ -127,6 +127,7 @@ aliases:
     - ClaudiaJKang
     - gochist
     - ianychoi
+    - jihoon-seo
     - seokho-son
     - ysyukr
   sig-docs-ko-reviews: # PR reviews for Korean content