anki-sync-server will be used in new ankisyncd module.
anki itself was slightly modified to add its cargoLock as passthru so we
can use it for anki-sync-server as it's built from the same sources.
Link: https://github.com/NixOS/nixpkgs/pull/257692
Co-authored-by: Pavel Sobolev <paveloom@riseup.net>
Co-authored-by: h7x4 <h7x4@nani.wtf>
