v2.8.0

📚 PR:

• chore(deps-dev): bump concurrently from 5.3.0 to 6.0.0
• Merge pull request #319 from fastify/dependabot/npm_and_yarn/concurrently-6.0.0
• feat: added fastify-sensible to project template (#312) (#313)
• Adding graceful shutdown lib (#318)