chore(deps): bump wasm-bindgen-futures from 0.4.27 to 0.4.28 (#456)

Bumps [wasm-bindgen-futures](https://github.com/rustwasm/wasm-bindgen) from 0.4.27 to 0.4.28.
- [Release notes](https://github.com/rustwasm/wasm-bindgen/releases)
- [Changelog](https://github.com/rustwasm/wasm-bindgen/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rustwasm/wasm-bindgen/commits)

---
updated-dependencies:
- dependency-name: wasm-bindgen-futures
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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