Update Rust crate serde to v1.0.212

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.211 -> 1.0.212

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Release Notes

serde-rs/serde (serde)

### [`v1.0.212`](https://redirect.github.com/serde-rs/serde/releases/tag/v1.0.212) [Compare Source](https://redirect.github.com/serde-rs/serde/compare/v1.0.211...v1.0.212) - Fix hygiene of macro-generated local variable accesses in serde(with) wrappers ([#​2845](https://redirect.github.com/serde-rs/serde/issues/2845))

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Configuration

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