feat: Add compatibility with doctrine/orm 3.0

[ddeboer]

Q	A
Branch?	main
Tickets	Closes #6199
License	MIT
Doc PR

Introduce compatibility with doctrine/orm 3.0.

[soyuka]

nice! can you run the doctrine orm component tests? Also it looks like phpstan isn't happy

[stevan-tosic]

All fine from my side but phpstan only to be resolved :)

[ddeboer]

Solved some problems, but others are popping up. Is there any documentation on how to run the tests and checks locally?

[soyuka]

Hi, thanks for the patch, I guess that our lowest tests would fail not having the new ClassMetadata? Still a bunch of red jobs though. Yes the documentation is at:
https://github.com/api-platform/core/blob/main/CONTRIBUTING.md#tests

[soyuka]

waiting for symfony/symfony@ac07f3e

[fabpot]

@soyuka You need this commit in a release? If yes, which branch do you need (5.4, 6.4, 7.0, the three of them)?

[soyuka]

@fabpot yes 6.4 and 7.0 would be great but I'd like to be sure it's the only blocker

[soyuka]

Thanks @ddeboer fo starting this went on my branch to continue as gh actions was buggy

[ddeboer]

My pleasure @soyuka. Thank you for wrapping this up.