yarn by corepack (#9542)

refs: #8461 

## Description
Rely on corepack for yarn version.

Bump the yarn version to latest.

### Security Considerations
none
### Scaling Considerations
none

### Documentation Considerations

I think our docs already say to start with `corepack enable`. Not certain.

### Testing Considerations
- [x] run locally

Fails if corepack not yet enabled. It should be, so if this change causes errors that would help us to detect. Corepack is important in order to upgrade to Yarn 4 eventually.

### Upgrade Considerations
none