[Config] Deprecate ArrayNodeDefinition::ignoreExtraKeys in favor of s etIgnoreExtraKeys and setRemoveExtraKeys

[alamirault]

Q	A
Branch?	6.2
Bug fix?	no
New feature?	yes
Deprecations?	yes
Tickets	Fix #33590
License	MIT
Doc PR	symfony/symfony-docs#...

ArrayNodeDefinition::ignoreExtraKeys($bool) is ambiguous, it control ArrayNode::ignoreExtraKeys and ArrayNode::removeExtraKeys at the same time.

Introduce unambiguous methods and deprecate ignoreExtraKeys

(It's seems better than create human helper constant)

(Unrelated fabbot failure)

[alamirault]

@carsonbot find me a reviewer please

[carsonbot]

I'm sorry. I could not find any suitable reviewer.

[alamirault]

I rebased branch on 6.3, I'm looking for reviewers 😄

[javiereguiluz]

I like this proposal ... but the new method names look a bit odd compared to the rest of methods:

setIgnoreExtraKeys()
setRemoveExtraKeys()

Maybe we could use these names instead:

ignoreExtraKeys()
removeExtraKeys()

This is a bit more complicated because we need to handle differently the deprecation of the current behavior of ignoreExtraKeys(), but it may be worth it.