[PRQ#57443] Merge Request for imagewriter-git

MarsSeed [1] filed a request to merge imagewriter-git [2] into imagewriter [3]: Both 'frispete' fork used in the '-git' package, and main upstream OpenSUSE project has been abandoned since 2020. [a] [b] Not useful to keep the VCS build. The stable AUR/imagewriter uses the last available master branch version of the source code. Also, an actively maintained clone, 'isoimagewriter' from the KDE project, has just been adopted to [extra] repository. [a]: https://github.com/frispete/imagewriter [b]: https://github.com/openSUSE/imagewriter [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/imagewriter-git/ [3] https://aur.archlinux.org/pkgbase/imagewriter/