What does this PR do?

Fixes #4593
Fixes #4880

Fastify does this thing where they iterate over require.cache during plugin registration

  // let's see if this is a file, and in that case use that
  // this is common for plugins
  const cache = require.cache
  // cache is undefined inside SEA
  if (cache) {
    const keys = Object.keys(cache)

    for (let i = 0; i < keys.length; i++) {
      const key = keys[i]
      if (cache[key].exports === func) { // ERROR HERE: undefined is not an object
        return key
      }
    }
  }

Not sure how it gets inserted into the ESM registry, but msgpack-extract somehow does this; it's an unevaluated module.

I don't think unevaluated modules should appear in the require cache at all, period. This PR filters those out.

• Documentation or TypeScript types (it's okay to leave the rest blank in this case)
• Code changes

How did you verify your code works?

I wrote automated tests