v8.0.0

📚 PR:

• build(deps-dev): bump wait-on from 5.3.0 to 6.0.0 (#522)
• build(deps): bump fastify/github-action-merge-dependabot (#526)
• build(deps-dev): bump @types/node from 15.14.1 to 16.0.0 (#527)
• chore: upgrade undici to v4 and deps (#528)
• Removed GraphQL Playground & Update GraphiQL (#453)
• build(deps): bump actions/setup-node from 2.1.5 to 2.2.0 (#523)