Log Message:
devel/mantis: update to 2.24.5

2.24.5 (2021-03-05)

Security and maintenance release, includes PHP 8.0 compatibility fixes.

* 0027800: [bugtracker] install.php throws SYSTEM WARNINGs (dregad)
* 0027928: [custom fields] Unable to edit Issues having Date custom fields
  on PHP 8.0 (dregad)
* 0027976: [security] User cookie string is not reset upon logout (dregad)
* 0027826: [bugtracker] ERROR_CATEGORY_NOT_FOUND_FOR_PROJECT thrown for
  Category '0' (dregad)