Deprecation: swimsuit tags

BUR #33483 has been rejected.

deprecate two-tone_swimsuit
deprecate multicolored_swimsuit

See forum #275317

Alternative tags need to be created first.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #33483 (forum #318256) has been rejected by @DanbooruBot.