update code owner (#1139)

* modified:   .github/CODEOWNERS

* modified:   .github/CODEOWNERS

---------

Co-authored-by: Young Yang <young.yang03@sap.com>
Co-authored-by: yutaoj <105471132+yutaoj@users.noreply.github.com>

Author: 3 people

.github/CODEOWNERS

@@ -1,6 +1,7 @@
 # Lines starting with '#' are comments.
+
 # Each line is a file pattern followed by one or more owners.
 
 # These owners will be the default owners for everything in the repo.
-*       @young-yang03
-*       @wangshen-sap
+*       @yutaoj
+*       @young-yang03