fix(metadata): no skolem iri by default

[soyuka]

Q	A
Branch?	bug fix (bc break)
Tickets	#5035
License	MIT

On 3.0 this behavior will be the default one, I'll add it only in 3.0 so that one can disable the skolemIri generation. We break the compatibility here, so let's revert for 2.7.

[tucksaun]

Thank you @soyuka for working on a fix for this issue 🙏

Though, regarding the "fix" for 3.0, may I suggest the following patch:
https://github.com/api-platform/core/compare/3.0...tucksaun:api-platform-core:fix-api-property-iris-anonymous-resources?expand=1

It should remove the need for patching ApiPlatform\Metadata\ApiProperty that's why I'm commenting here ;)
If the approach looks viable to you I can open the PR stat.

[soyuka]

@tucksaun thanks for that I added it to the fix here, iri is too confusing however so let's fix this properly by adding a new genid option to ApiProperty. It'll default to false in 2.7 and true in 3.0.

[tucksaun]

Finally got the chance to give it a go and it seems everything is working properly.

Thank you @soyuka!
And good luck with 3.0 stabilization 🤗