[PRQ#37546] Merge Request for mozilla-firefox-sync-server-git

SunRed [1] filed a request to merge mozilla-firefox-sync-server-git [2] into firefox-syncstorage-git [3]: This package has been superseded by the Rust based project and should therefore be installed instead in the future. [1] https://aur.archlinux.org/account/SunRed/ [2] https://aur.archlinux.org/pkgbase/mozilla-firefox-sync-server-git/ [3] https://aur.archlinux.org/pkgbase/firefox-syncstorage-git/