Add scianciulli and remove oth from ART's OWNERS file

Test: no test required

Change-Id: Ibb53c272b4ca4dd1a5f99fdb753d11d01cab85e1
diff --git a/OWNERS b/OWNERS
index cfaa94b..161972e 100644
--- a/OWNERS
+++ b/OWNERS
@@ -7,6 +7,7 @@
 mythria@google.com
 ngeoffray@google.com
 rpl@google.com
+scianciulli@google.com
 solanes@google.com
 vmarko@google.com
 
@@ -14,7 +15,6 @@
 miguelaranda@google.com
 mingaleev@google.com
 nikitai@google.com
-oth@google.com
 prb@google.com
 skvadrik@google.com
 sorinbasca@google.com