build(deps-dev): bump fastify from 5.11.2 to 5.11.3

Bumps [fastify](https://github.com/fastify/fastify) from 5.11.2 to 5.11.3.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v5.11.2...v5.11.3)

---
updated-dependencies:
- dependency-name: fastify
  dependency-version: 5.11.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -168,7 +168,7 @@
     "@types/supertest": "7.2.1",
     "@vitest/coverage-v8": "4.1.10",
     "ai": "7.0.64",
-    "fastify": "5.11.2",
+    "fastify": "5.11.3",
     "oxlint": "1.77.0",
     "prettier": "3.9.6",
     "publint": "0.3.23",