get channel id for bookmark files in ES/OS (#28221)

Co-authored-by: Miguel de la Cruz <mgdelacroix@gmail.com>

server/channels/store/searchtest/file_info_layer.go

@@ -191,7 +191,7 @@ var searchFileInfoStoreTests = []searchTest{
 	{
 		Name: "Should search files part of channel bookmarks",
 		Fn:   testFileInfoSearchShowChannelBookmarkFiles,
-		Tags: []string{EnginePostgres, EngineMySQL},
+		Tags: []string{EnginePostgres, EngineMySQL, EngineElasticSearch},
 	},
 }