Bump fastify and fastify-cli in /examples/entrypoint

Bumps [fastify](https://github.com/fastify/fastify) and [fastify-cli](https://github.com/fastify/fastify-cli). These dependencies needed to be updated together.

Updates `fastify` from 4.28.1 to 5.7.4
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v4.28.1...v5.7.4)

Updates `fastify-cli` from 6.3.0 to 7.4.1
- [Release notes](https://github.com/fastify/fastify-cli/releases)
- [Commits](fastify/fastify-cli@v6.3.0...v7.4.1)

---
updated-dependencies:
- dependency-name: fastify
  dependency-version: 5.7.4
  dependency-type: direct:production
- dependency-name: fastify-cli
  dependency-version: 7.4.1
  dependency-type: direct:production
...

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Author: dependabot[bot]