chore(deps): update rust crate serde to v1.0.209

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.193 -> 1.0.209

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Release Notes

serde-rs/serde (serde)

v1.0.209

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• Fix deserialization of empty structs and empty tuples inside of untagged enums (#​2805, thanks @​Mingun)

v1.0.208

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• Support serializing and deserializing unit structs in a flatten field (#​2802, thanks @​jonhoo)

v1.0.207

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• Improve interactions between flatten attribute and skip_serializing/skip_deserializing (#​2795, thanks @​Mingun)

v1.0.206

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• Improve support for flatten attribute inside of enums (#​2567, thanks @​Mingun)

v1.0.205

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• Use serialize_entry instead of serialize_key + serialize_value when serialize flattened newtype enum variants (#​2785, thanks @​Mingun)
• Avoid triggering a collection_is_never_read lint in the deserialization of enums containing flattened fields (#​2791)

v1.0.204

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• Apply #[diagnostic::on_unimplemented] attribute on Rust 1.78+ to suggest adding serde derive or enabling a "serde" feature flag in dependencies (#​2767, thanks @​weiznich)

v1.0.203

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• Documentation improvements (#​2747)

v1.0.202

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• Provide public access to RenameAllRules in serde_derive_internals (#​2743)

v1.0.201

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• Resolve unexpected_cfgs warning (#​2737)

v1.0.200

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• Fix formatting of "invalid type" and "invalid value" deserialization error messages containing NaN or infinite floats (#​2733, thanks @​jamessan)

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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