- fix mistake in upgrade sql

updates/20220301/mysql-patch-filters.sql

@@ -1 +1 @@
-ALTER TABLE `Filter_list` ADD `srcport` `srcport` VARCHAR(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL AFTER `dstport`;
+ALTER TABLE `Filter_list` ADD `srcport` VARCHAR(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL AFTER `dstport`;