perf: use `node:` prefix to bypass require.cache call for builtins

[Fdawgs]

See https://github.com/fastify/fastify-static/pull/407

Checklist

• [x] run npm run test and npm run benchmark
• [x] tests and/or benchmarks are included
• [x] documentation is changed or added
• [x] commit message and code follows the Developer's Certification of Origin and the Code of conduct