chore(deps-dev): bump fastify in the dependencies group

Bumps the dependencies group with 1 update: [fastify](https://github.com/fastify/fastify).


Updates `fastify` from 5.6.1 to 5.6.2
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v5.6.1...v5.6.2)

---
updated-dependencies:
- dependency-name: fastify
  dependency-version: 5.6.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]