Bump fastify from 4.28.1 to 5.11.2 in /TestProjects/NodeJS.Service

Bumps [fastify](https://github.com/fastify/fastify) from 4.28.1 to 5.11.2.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v4.28.1...v5.11.2)

---
updated-dependencies:
- dependency-name: fastify
  dependency-version: 5.11.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]