fix: upgrade scripts for mysql

* Fix mysql db migration

* Update store/db/mysql/migration/prod/0.22/01__memo_tags.sql

* Update store/db/mysql/migration/prod/0.22/02__memo_payload.sql

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Co-authored-by: boojack <stevenlgtm@gmail.com>

store/db/mysql/migration/prod/0.22/01__memo_tags.sql

 ALTER TABLE `memo` ADD COLUMN `tags_temp` JSON;
 UPDATE `memo` SET `tags_temp` = '[]';
-ALTER TABLE `memo` DROP COLUMN `tags`;
 ALTER TABLE `memo` CHANGE COLUMN `tags_temp` `tags` JSON NOT NULL;

store/db/mysql/migration/prod/0.22/02__memo_payload.sql

 ALTER TABLE `memo` ADD COLUMN `payload_temp` JSON;
 UPDATE `memo` SET `payload_temp` = '{}';
-ALTER TABLE `memo` DROP COLUMN `payload`;
 ALTER TABLE `memo` CHANGE COLUMN `payload_temp` `payload` JSON NOT NULL;