MT#55283 fix session reference leak

Change-Id: I8d906e6a0585422b66574f28ac1c8fb32615cc99
(cherry picked from commit ea3d4da69b)

daemon/janus.c

@@ -1206,6 +1206,8 @@ static const char *janus_create(JsonReader *reader, JsonBuilder *builder, struct
 	json_builder_add_int_value(builder, session_id);
 	json_builder_end_object(builder); // }
 
+	obj_put(session);
+
 	return NULL;
 }