Switch ownership for http gateway to @ydb-platform/fq (#6740)

Author: GrigoriyPA

.github/CODEOWNERS

@@ -7,6 +7,7 @@
 
 /ydb/library/yql/ @ydb-platform/yql
 /ydb/library/yql/dq @ydb-platform/yql @ydb-platform/qp
+/ydb/library/yql/providers/common/http_gateway @ydb-platform/fq
 /ydb/library/yql/providers/generic @ydb-platform/fq
 /ydb/library/yql/providers/pq @ydb-platform/fq
 /ydb/library/yql/providers/s3 @ydb-platform/fq