Consider switching to `lycheeLinkCheck` for link checking

[fricklerhandwerk]

Link checks seem to be a bit flaky, but also they use the links directly from the parsed MyST as opposed to lychee parsing them from sources.

https://nixos.org/manual/nixpkgs/stable/#tester-lycheeLinkCheck

Originally posted by @roberth in https://github.com/NixOS/nix.dev/issues/1099#issuecomment-2615906971

[sedlund]

build args are still broken with this

nix run "github:VolodiaPG/deploy-rs?rev=2edaf49" -- --targets .#wsl.system -- -Lv

error: the argument '--targets <TARGETS>...' cannot be used with '[TARGET]'

Usage: deploy --targets <TARGETS>... [TARGET] [EXTRA_BUILD_ARGS]...

thanks for looking at it