Add an automated converter from compact to expanded patch definition format

[cweagans]

Verification

• I have updated Composer to the most recent stable release (composer self-update)
• I have updated Composer Patches to the most recent stable release (composer update cweagans/composer-patches)
• I am using one of the supported PHP versions (8.0+)
• I have searched existing issues and discussions for my idea.

Is your feature request related to a problem?

Right now, if I want to switch from the compact format to expanded format for a given dependency (wherever those patches are defined), I have to do that conversion manually. That's tedious and annoying.

Describe your proposed solution(s)

I want a command like composer patches-expand drupal/core, which will edit my composer.json and/or patches.json, convert the compact definitions into expanded definitions, composer update --lock if necessary, then composer patches-relock, then composer patches-repatch.

Describe alternatives

No response

Additional context

No response

[github-actions]

👋 Thanks for the idea! Please remember that this is an open source project - feature requests may or may not be implemented, and if they are, the timeline is unknown. If you need a guaranteed implementation or timeline, sponsorships are welcome!