Refactor the OrderByKeyToClassConstRector to use the new enum only in `Criteria::orderBy` method calls

[julienfastre]

Since version 2.2.0 of doctrine/collection, the constant Doctrine\Common\Collections\Criteria is deprecated in favor of new enum \Doctrine\Common\Collections\Order.

But this enum should only be used in invocations of Doctrine\Common\Collection\Criteria::orderBy method call. Other calls (in attributes, or for the same method name on object instantiating another class) should not be changed: the string 'ASC' and 'DESC' should be kept elsewhere.

This PR refactor the rule which, previously, replaced all the 'ASC' and 'DESC' by the Criteria::ASC|DESC. Now, the rule:

• check that the method call is on Criteria::orderBy (still todo)
• and replace by the new enum (Order).

Comments and documentation supporting this change

• https://github.com/doctrine/collections/pull/389;
• https://github.com/doctrine/orm/issues/11313#issuecomment-2214570323

Closes https://github.com/rectorphp/rector-doctrine/issues/325