fix jikan-me#360

Update Constants.php

v3: fix jikan-me#366

v2: fix jikan-me#366 [ci skip]

Merge pull request jikan-me#370 from nezu-io/3.0.0

Allow using PHP 8.0 with Jikan

Merge pull request jikan-me#369 from seanbreckenridge/userlist-genre-ids

bugfix/userlist: add genre/demographic IDs to URL

Merge pull request jikan-me#368 from seanbreckenridge/master

bugfix: renamed manga character container class

Fix people pictures and return only single image size

fix character pictures not parsing jikan-me#359 [ci skip]

VoiceActingRoleParser: `role` hotfix