Update SemanticCompoundQueries.i18n.magic.php

Added magic word in Serbian (Cyrillic script) per https://phabricator.wikimedia.org/T349952

Author: kizule

i18n/SemanticCompoundQueries.i18n.magic.php

@@ -60,6 +60,11 @@
 	'compound_query' => [ 0, 'consulta_composta' ],
 ];
 
+/** Serbian (Cyrillic script) (српски (ћирилица)‎) */
+$magicWords['sr-ec'] = [
+	'compound_query' => [ 0, 'састави_упит' ],
+];
+
 /** Serbian (Latin script) (srpski (latinica)‎) */
 $magicWords['sr-el'] = [
 	'compound_query' => [ 0, 'sastavi_upit' ],
@@ -73,4 +78,4 @@
 /** Traditional Chinese (中文（繁體）‎) */
 $magicWords['zh-hant'] = [
 	'compound_query' => [ 0, '組合搜尋' ],
-];
+];