add apolito to owners

Change-Id: I70191146494462302cdef5835f1c3c690a201b5d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2025728Reviewed-by: Aaron Gable <agable@chromium.org>
Commit-Queue: Anthony Polito <apolito@google.com>

OWNERS

 set noparent
 
 agable@chromium.org
+apolito@google.com
 dpranke@chromium.org
 ehmaldonado@chromium.org
 ehmaldonado@google.com