[TypeDeclaration] Deprecate unreliable AddArrayReturnDocTypeRector, used split strict typed rules instead

[TomasVotruba]

No description provided.

[samsonasik]

@TomasVotruba I am not sure about removing it, as it doesn't change return type, only add array docblock, which seems fine

[TomasVotruba]

It adds array doc based on other docblocks, so it spreads possibly invalid values. Instead we should have specific split rules that handle this based on strict values, like we have for param/return/property types.

[samsonasik]

Ok 👍