build: Bump js-sys from 0.3.67 to 0.3.68 in /fuzz

Bumps [js-sys](https://github.com/rustwasm/wasm-bindgen) from 0.3.67 to 0.3.68.
- [Release notes](https://github.com/rustwasm/wasm-bindgen/releases)
- [Changelog](https://github.com/rustwasm/wasm-bindgen/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rustwasm/wasm-bindgen/commits)

---
updated-dependencies:
- dependency-name: js-sys
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

fuzz/Cargo.lock

@@ -467,9 +467,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.67"
+version = "0.3.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a1d36f1235bc969acba30b7f5990b864423a6068a10f7c90ae8f0112e3a59d1"
+checksum = "406cda4b368d531c842222cf9d2600a9a4acce8d29423695379c6868a143a9ee"
 dependencies = [
  "wasm-bindgen",
 ]