Add support for Codeberg and Forĝejo

Please add support for Codeberg, one of the largest git forge platforms behind GitHub and GitLab - Codeberg runs the Forĝejo git forge platform.

Codeberg is located at https://Codeberg.org

* The **Forĝejo** software forge platform is a drop-in replacement for **Gitea**, so adding support for **Codeberg** Also means that support will necessarily also include support for all installed **Forĝejo** and **Gitea** forges in existence automatically.
* The **Forĝejo** project is located at https://forgejo.org
* The **Gitea** project is located at https://gitea.io