fix(deps): update all non-major dependencies to v1.0.208

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.206 -> 1.0.208
serde_json	dependencies	patch	1.0.124 -> 1.0.125

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Release Notes

serde-rs/serde (serde)

### [`v1.0.208`](https://togithub.com/serde-rs/serde/releases/tag/v1.0.208) [Compare Source](https://togithub.com/serde-rs/serde/compare/v1.0.207...v1.0.208) - Support serializing and deserializing unit structs in a `flatten` field ([#​2802](https://togithub.com/serde-rs/serde/issues/2802), thanks [@​jonhoo](https://togithub.com/jonhoo)) ### [`v1.0.207`](https://togithub.com/serde-rs/serde/releases/tag/v1.0.207) [Compare Source](https://togithub.com/serde-rs/serde/compare/v1.0.206...v1.0.207) - Improve interactions between `flatten` attribute and `skip_serializing`/`skip_deserializing` ([#​2795](https://togithub.com/serde-rs/serde/issues/2795), thanks [@​Mingun](https://togithub.com/Mingun))

serde-rs/json (serde_json)

### [`v1.0.125`](https://togithub.com/serde-rs/json/releases/tag/1.0.125) [Compare Source](https://togithub.com/serde-rs/json/compare/v1.0.124...1.0.125) - Speed up \uXXXX parsing and improve handling of unpaired surrogates when deserializing to bytes ([#​1172](https://togithub.com/serde-rs/json/issues/1172), [#​1175](https://togithub.com/serde-rs/json/issues/1175), thanks [@​purplesyringa](https://togithub.com/purplesyringa))

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