fix(deps): update dependency fastify to v5.2.1 (#1156)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [fastify](https://fastify.dev/)
([source](https://redirect.github.com/fastify/fastify)) | [`5.2.0` ->
`5.2.1`](https://renovatebot.com/diffs/npm/fastify/5.2.0/5.2.1) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/fastify/5.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/fastify/5.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/fastify/5.2.0/5.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/fastify/5.2.0/5.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>fastify/fastify (fastify)</summary>

###
[`v5.2.1`](https://redirect.github.com/fastify/fastify/compare/v5.2.0...v5.2.1)

[Compare
Source](https://redirect.github.com/fastify/fastify/compare/v5.2.0...v5.2.1)

</details>

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