Bump fastify from 3.16.1 to 3.16.2 (#61)

Bumps [fastify](https://github.com/fastify/fastify) from 3.16.1 to 3.16.2.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v3.16.1...v3.16.2)

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