Update Rust crate serde to v1.0.203

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.200 -> 1.0.203

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Release Notes

serde-rs/serde (serde)

### [`v1.0.203`](https://togithub.com/serde-rs/serde/releases/tag/v1.0.203) [Compare Source](https://togithub.com/serde-rs/serde/compare/v1.0.202...v1.0.203) - Documentation improvements ([#​2747](https://togithub.com/serde-rs/serde/issues/2747)) ### [`v1.0.202`](https://togithub.com/serde-rs/serde/releases/tag/v1.0.202) [Compare Source](https://togithub.com/serde-rs/serde/compare/v1.0.201...v1.0.202) - Provide public access to RenameAllRules in serde_derive_internals ([#​2743](https://togithub.com/serde-rs/serde/issues/2743)) ### [`v1.0.201`](https://togithub.com/serde-rs/serde/releases/tag/v1.0.201) [Compare Source](https://togithub.com/serde-rs/serde/compare/v1.0.200...v1.0.201) - Resolve unexpected_cfgs warning ([#​2737](https://togithub.com/serde-rs/serde/issues/2737))

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Configuration

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark: