v4.0.0

📚 PR:

• Upgrade to fastify v3 (#47)
• Bump tap from 12.7.0 to 14.10.7 (#52)
• Bump redis from 2.8.0 to 3.0.2 (#51)
• Bump @types/node from 12.12.37 to 13.13.4 (#50)