fix(deps): update rust crate serde to 1.0.178

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde (source)	dependencies	patch	1.0.177 -> 1.0.178

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Release Notes

serde-rs/serde (serde)

### [`v1.0.178`](https://togithub.com/serde-rs/serde/releases/tag/v1.0.178) [Compare Source](https://togithub.com/serde-rs/serde/compare/v1.0.177...v1.0.178) - Fix build error when using serde with "std" feature turned off and "unstable" feature turned on ([#​2541](https://togithub.com/serde-rs/serde/issues/2541))

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