fix(deps): update rust crate serde to v1.0.215 (#1563)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [serde](https://serde.rs)
([source](https://redirect.github.com/serde-rs/serde)) | dependencies |
patch | `1.0.214` -> `1.0.215` |

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