Fix Parcel failing in Yarn PnP mode (and peer dependency warning)

[wojtekmaj]

↪️ Pull Request

This fixes the error when installing Parcel using Yarn in PnP mode:

@parcel/fs tried to access @parcel/core (a peer dependency) but it isn't provided by its ancestors

Fixes #9114

🚨 Test instructions

• In Yarn v2/v3/v4 repository in PnP mode, run yarn add --dev parcel; yarn parcel index.html
• After this change, it should no longer crash

✔️ PR Todo

• Added/updated unit tests for this change
• Filled out test instructions (In case there aren't any unit tests)
• Included links to related issues/PRs

[mischnic]

@parcel/core is already a peerdep of @parcel/fs, so that should be fine. This is printed as part of the error:

Ancestor breaking the chain: @parcel/node-resolver-core@npm:3.0.3
Ancestor breaking the chain: @parcel/types@npm:2.9.3

So I think the actual error is that these two use @parcel/fs but don't have @parcel/core as a (peer) dependency.

[wojtekmaj]

Yes, you're right, I got it all wrong here. Sorry!