As `cargo vendor` currently doesn't support workspace inherited manifest
values, a patch that replaced the values manually was used as a workaround.
Now that importCargoLock has support for this, and we're probably going
to move towards it anyways, let's switch to it now, as there's a clear
benefit either way.
This also switches to using our copy of SQLite instead of the vendored
one included in `libsqlite3-sys` -- because it's preferred, but also
because it causes the build to fail, now that dependencies are read-only.
*Flags implies a list
slightly relevant:
> stdenv: start deprecating non-list configureFlags https://github.com/NixOS/nixpkgs/pull/173172
the makeInstalledTests function in `nixos/tests/installed-tests/default.nix` isn't available outside of nixpkgs so
it's not a breaking change
