feat: add decorator name to validation metadata

[Clashsoft]

Description

Added the optional name property to ValidationMetadata which is set from options in registerDecorator.
Previously, the information in options.name was lost - it was not possible to find out which concrete decorators are present in a class.

See #622.

Checklist

• the pull request title describes what this PR does (not a vague title like Update index.md)
• the pull request targets the default branch of the repository (develop)
• the code follows the established code style of the repository
  • npm run prettier:check passes
  • npm run lint:check passes
• tests are added for the changes I made (if any source code was modified)

  not applicable, there is no new logic, only additional data being passed

• documentation added or updated

  I added jsdoc comments.
  Otherwise not applicable, the affected part of the code is not documented for end users

• I have run the project locally and verified that there are no errors

Fixes

references #622

[Clashsoft]

@Prim3591 thanks for approving, can you approve the workflow run as well please?

[Clashsoft]

@Prim3591 Bumping this, I still have an ongoing project that is blocked by this change...

[Prim3591]

@Prim3591 Bumping this, I still have an ongoing project that is blocked by this change...

Thank you for your enthusiasm but I'm not an admin on this repo, and thus not able to merge it. I've just reviewed it because I need it too, by doing so I was expecting the "real admin" could perform this task quicker :)

[NoNameProvided]

Can you rebase this please to the latest develop? (Instead of rebasing it's easier to cherry-pick it probably.)

[Clashsoft]

Can you rebase this please to the latest develop? (Instead of rebasing it's easier to cherry-pick it probably.)

Done!

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.