Change logs for mathomatic source package in Bookworm

mathomatic (16.0.5-5) unstable; urgency=medium

  [ Debian Janitor ]
  * Use secure URI in Homepage field.

  [ tony mancill ]
  * Freshen debian/copyright
  * Update Homepage (Closes: #1028558)
    - Thank you to Jakub Wilk for the bug report.
    - Remove references to mathomatic.org in some docs and in doc-base
    - Update debian/watch
  * Bump Standards-Version to 4.6.2

 -- tony mancill <email address hidden>  Sun, 15 Jan 2023 10:17:33 -0800