add Kumar Aditya as CODEOWNER for import.c (#107441)

Author: kumaraditya303

.github/CODEOWNERS

@@ -69,6 +69,7 @@ Python/traceback.c            @iritkatriel
 
 # Import (including importlib).
 **/*import*                   @brettcannon @ericsnowcurrently @ncoghlan @warsaw
+/Python/import.c              @kumaraditya303
 **/*importlib/resources/*      @jaraco @warsaw @FFY00
 **/importlib/metadata/*       @jaraco @warsaw