Problem/Motivation
Since 13 Sep 2022 we've recommended using corepack to manage which yarn version but using this results in changing core/package.json when you run a yarn command which is frustrating.
Steps to reproduce
Use corepack to manage yarn and run a yarn command in /core
Proposed resolution
Add the missing packageManager key.
Remaining tasks
User interface changes
N/a
API changes
N/a
Data model changes
N/a
Release notes snippet
N/a