fix(pnp): handle dynamic imports in CJS files

[merceyz]

What's the problem this PR addresses?

Dynamic imports in CJS files that import other CJS files doesn't load the module and just returns an empty object.

Note that dynamic imports in CJS files only works for things Node can find without the PnP runtime.

Extracted from #2161
Fixes #3163

How did you fix it?

Load the module if it hasn't been loaded but exists in the cache.

Checklist

• I have read the Contributing Guide.
• I have set the packages that need to be released for my changes to be effective.
• I will check that all automated PR checks pass before the PR gets reviewed.