Pin the Nix `wasm-bindgen-cli` dependencies, so they don't drift from those in Cargo.toml

[Xophmeister]

@Xophmeister I haven't looked at your Nix config, but here is what we do to enforce that the versions stay in sync:

https://github.com/tweag/nickel/blob/20809d3161d9c0ba537d7bf871bd7684ef91b3f3/flake.nix#L84-L93

Originally posted by @yannham in https://github.com/tweag/topiary/issues/685#issuecomment-1970987105