Update Rust crate serde to 1.0.199

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.193 -> 1.0.199

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Release Notes

serde-rs/serde (serde)

v1.0.199

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• Fix ambiguous associated item when forward_to_deserialize_any! is used on an enum with Error variant (#​2732, thanks @​aatifsyed)

v1.0.198

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• Support serializing and deserializing Saturating<T> (#​2709, thanks @​jbethune)

v1.0.197

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• Fix unused_imports warnings when compiled by rustc 1.78
• Optimize code size of some Display impls (#​2697, thanks @​nyurik)

v1.0.196

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• Improve formatting of "invalid type" error messages involving floats (#​2682)

v1.0.195

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• Prevent remote definitions of tuple struct or tuple variant from triggering dead_code warning (#​2671)

v1.0.194

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• Update proc-macro2 to fix caching issue when using a rustc-wrapper such as sccache

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