rename nakamura_jun'ichi -> nakamura_jun-ichi

BUR #24562 has been rejected.

rename nakamura_jun'ichi -> nakamura_jun-ichi

Seems his name is spelt with "-" on his website and account.

https://jun1n.sakura.ne.jp/

https://twitter.com/atomicbrain_j

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 #24562 (forum #273802) has been rejected by @DanbooruBot.