cargo update -p web-sys --aggressive

```
Updating bumpalo v3.2.0 -> v3.2.1
Updating js-sys v0.3.36 -> v0.3.39
Updating ryu v1.0.2 -> v1.0.4
Updating serde v1.0.104 -> v1.0.106
Updating serde_derive v1.0.104 -> v1.0.106
Updating serde_json v1.0.48 -> v1.0.52
Updating wasm-bindgen v0.2.59 -> v0.2.62
Updating wasm-bindgen-backend v0.2.59 -> v0.2.62
Updating wasm-bindgen-macro v0.2.59 -> v0.2.62
Updating wasm-bindgen-macro-support v0.2.59 -> v0.2.62
Updating wasm-bindgen-shared v0.2.59 -> v0.2.62
Updating web-sys v0.3.36 -> v0.3.39
```

Author: jtgeibel