update wasm-bindgen

[sigmaSd]

with wasmbuild 0.18.0, running deno task wasmbuild issue some warnings

warning: unexpected `cfg` condition name: `wasm_bindgen_unstable_test_coverage`
  --> rs_lib/src/lib.rs:13:1
   |
13 | #[wasm_bindgen]
   | ^^^^^^^^^^^^^^^
   |
   = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
   = help: try referring to `wasm_bin

This was fixed recently rustwasm/wasm-bindgen#4284