Bump wasm-bindgen-test from 0.3.17 to 0.3.18 (#7579)

Bumps [wasm-bindgen-test](https://github.com/rustwasm/wasm-bindgen) from 0.3.17 to 0.3.18.
- [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)

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