chore(deps): update dependency fastify to v3.29.3 (main) (#7010)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [fastify](https://www.fastify.io/)
([source](https://togithub.com/fastify/fastify)) | [`3.29.2` ->
`3.29.3`](https://renovatebot.com/diffs/npm/fastify/3.29.2/3.29.3) |
[![age](https://badges.renovateapi.com/packages/npm/fastify/3.29.3/age-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://badges.renovateapi.com/packages/npm/fastify/3.29.3/adoption-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://badges.renovateapi.com/packages/npm/fastify/3.29.3/compatibility-slim/3.29.2)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://badges.renovateapi.com/packages/npm/fastify/3.29.3/confidence-slim/3.29.2)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>fastify/fastify</summary>

###
[`v3.29.3`](https://togithub.com/fastify/fastify/releases/tag/v3.29.3)

[Compare
Source](https://togithub.com/fastify/fastify/compare/v3.29.2...v3.29.3)

##### ⚠️ ~Security Release~ ⚠️

This release backport the fixes of
GHSA-455w-c45v-86rg
for the v3.x line.
While not being a vulnerability for this line, a backport is still
welcome due to the problems highlighted in the report.

**Full Changelog**:
fastify/fastify@v3.29.2...v3.29.3

</details>

---

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package-lock.json

@@ -101,7 +101,7 @@
     "cspell": "5.21.2",
     "deep-freeze": "0.0.1",
     "express": "4.18.2",
-    "fastify": "3.29.2",
+    "fastify": "3.29.3",
     "form-data": "4.0.0",
     "graphql": "15.8.0",
     "graphql-tag": "2.12.6",