📚 PR:
- Bump typescript from 3.9.7 to 4.0.2
- doc: add scope & route level to Hooks ToC (#2503)
- add fastify-xray to ecosystem (#2504)
- docs: added fastify-socket.io to Ecosystem section (#2505)
- Expose router config via getters on Request (#2506)
- feat: update nodejs matrix for GH Actions (#2513)
- Test: Improve coverage (#2486)
- add decision making paragraph (#2501)
- Add fastify-opentelemetry to ecosystem doc. (#2517)