Deprecate property "methods" Class Symfony\Component\Validator\Constraints\Callback

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | [#12672]
| License       | MIT

Deprecate property "methods" Class Symfony\Component\Validator\Constraints\Callback
this is wrong. You should trigger the deprecation when using the ``methods`` property, not when loading the class. This means that the best place to trigger it is probably in the CallbackValidator instead.

Your change will report deprecation for anyone using the Callback constraint, which is not the right way