Update Rust crate serde_json to 1.0.86

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde_json	dependencies	patch	1.0.85 -> 1.0.86

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Release Notes

serde-rs/json

### [`v1.0.86`](https://togithub.com/serde-rs/json/releases/tag/v1.0.86) [Compare Source](https://togithub.com/serde-rs/json/compare/v1.0.85...v1.0.86) - Support `arbitrary_precision` feature even in no-std mode ([#​928](https://togithub.com/serde-rs/json/issues/928), thanks [@​kvinwang](https://togithub.com/kvinwang))

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