Update CODEOWNERS for translation team logos

tdhock requested that I take over as reviewer. Making this change

Author: jmrung

CODEOWNERS

@@ -69,4 +69,4 @@
 /man/openmp-utils.Rd @Anirban166
 
 # meta
-/.graphics/translation-team-logos/*.png @tdhock
+/.graphics/translation-team-logos/*.png @jmrung