Update Rust crate serde_json to 1.0.108

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde_json	dependencies	patch	1.0.107 -> 1.0.108

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Release Notes

serde-rs/json (serde_json)

### [`v1.0.108`](https://togithub.com/serde-rs/json/releases/tag/v1.0.108) [Compare Source](https://togithub.com/serde-rs/json/compare/v1.0.107...v1.0.108) - Documentation improvements ([#​1075](https://togithub.com/serde-rs/json/issues/1075), [#​1081](https://togithub.com/serde-rs/json/issues/1081), [#​1082](https://togithub.com/serde-rs/json/issues/1082), thanks [@​dimo414](https://togithub.com/dimo414) and [@​fritzrehde](https://togithub.com/fritzrehde))

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