Remove Doctrine mappings YML from documentation

[cosminsandu]

Since Doctrine 3.0 does not support YML configuration (see doctrine/DoctrineBundle#1071 https://github.com/doctrine/orm/blob/3.0.x/UPGRADE.md#bc-break-remove-yaml-mapping-drivers https://github.com/doctrine/orm/blob/3.0.x/UPGRADE.md#deprecated-yaml-mapping-drivers ) Doctrine Configuration Reference (DoctrineBundle) documentation > Mapping Configuration > type should be updated to not contain yml format anymore.

please let me know if it is ok to remove the yml option from documentation.

[cosminsandu]

I think it should be a deprecated message - as in case of Annotations (on version 6.4 )

Please let me know on which Symfony version should I add this change.

[xabbuh]

We can do the change in the 5.4 branch as Doctrine ORM 3 is usable with Symfony 5.4.

[cosminsandu]

Looks like I need to add .. deprecated:: to a version of Symfony but in this case it is deprecated in ORM 3.0

Error: Please provide a numeric version behind ".. deprecated::" instead of "ORM 3.0"
Error: Please provide a numeric version behind ".. deprecated::" instead of "ORM 3.0"
Error: Please only provide ".. deprecated::" if the version is greater/equal "5.0"

https://github.com/symfony/symfony-docs/actions/runs/10006460548/job/27659228920?pr=20052

Please advice

[javiereguiluz]

Closing as fixed in #20052.