Upgrade wasmer-wasix to the newest version of wasm-bindgen

[Michael-F-Bryan]

This fixes a bunch of nasty version conflict issues downstream.

$ cargo check
    Updating crates.io index
error: failed to select a version for `wasm-bindgen`.
    ... required by package `wasmer-wasix v0.10.0`
    ... which satisfies dependency `wasmer-wasix = "^0.10"` of package `wasmer-wasix-js v0.0.1-alpha.1 (/Users/work/Documents/wasmer/wasmer-js)`
versions that meet the requirements `>=0.2.74, <0.2.85` are: 0.2.84, 0.2.83, 0.2.82, 0.2.81, 0.2.80, 0.2.79, 0.2.78, 0.2.77, 0.2.76, 0.2.75, 0.2.74

all possible versions conflict with previously selected packages.

  previously selected package `wasm-bindgen v0.2.87`
    ... which satisfies dependency `wasm-bindgen = "^0.2.87"` of package `js-sys v0.3.64`
    ... which satisfies dependency `js-sys = "^0.3.60"` of package `wasm-bindgen-downcast v0.1.1`
    ... which satisfies dependency `wasm-bindgen-downcast = "^0.1.1"` of package `wasmer v4.1.0`
    ... which satisfies dependency `wasmer = "=4.1.0"` of package `wasmer-wasix v0.10.0`
    ... which satisfies dependency `wasmer-wasix = "^0.10"` of package `wasmer-wasix-js v0.0.1-alpha.1 (/Users/work/Documents/wasmer/wasmer-js)`

failed to select a version for `wasm-bindgen` which could resolve this conflict