Add support to ESM about benchmarks

[jsumners]

I rather just remove the offending modules.

[ikmrgrv]

I rather just remove the offending modules.

What's wrong with keeping things up-to-date and dropping legacy supports ??
Just curious to know what's the pain point in adding support to ESM. If possible, what could be the strategy and how can I help to bring this upgrade ??

[jsumners]

1. CJS isn't "legacy"
2. ESM does not work the same way
3. ESM is not instrumentable

[Turbine1991]

There are limitations in interoperability, while ESM can import CJS, CJS cannot require ESM, because it would break the synchronous constraint.

If this is still true, one may want to reconsider. Currently Fastify works just fine in my ESM project.