libdigidocpp is a dependency of qdigidoc4(1) already.
This will need https://github.com/NixOS/nixpkgs/pull/174055
"libdigidocpp: Fix PKCS11 module library path" to work, though.
Change-Id: Ic8d671077977b1d1f099a8b4b23cc537b52aa954
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5647
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>