[Feature] Add hash for packageManager to set version CLI command

[MikeMcC399]

• I'd be willing to implement this feature (contributing guide)
• This feature is important to have in this repository; a contrib plugin wouldn't do

Describe the user story

As a package creator or maintainer, I want to add or update the version of Yarn stored in the packageManager key of the package.json manifest for use when Corepack is enabled.
I want to have consistent results whether I use the

• Yarn CLI command set version or the
• Corepack CLI command corepack use

to set the Yarn package manager version.

Describe the solution you'd like

When the Yarn CLI command set version is executed, and it places a packageManager key into the package.json manifest, the key should include a hash. The effect should be the same as executing corepack use.

Describe the drawbacks of your solution

There should not be any drawbacks, because Corepack already uses and generates a packageManager key with a hash, and Yarn is already using this.

Describe alternatives you've considered

This is an update to an existing Yarn CLI command, so it could not easily be put into a plugin.

Other

package.json examples:

Example yarn (4.6.0)

Execute yarn set version 4.6.0

{
  "packageManager": "[email protected]"
}

Example corepack (0.30.0)

Execute corepack use [email protected]

{
  "packageManager": "[email protected]+sha512.5383cc12567a95f1d668fbe762dfe0075c595b4bfff433be478dbbe24e05251a8e8c3eb992a986667c1d53b6c3a9c85b8398c35a960587fbd9fa3a0915406728"
}

[MikeMcC399]

As also discussed in https://discord.com/channels/226791405589233664/1329423112860733451