fix(deps): update serde monorepo to v1.0.207

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.206 -> 1.0.207
serde_derive (source)	dependencies	patch	1.0.206 -> 1.0.207

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Release Notes

serde-rs/serde (serde)

### [`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))

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