[CodeQuality] Skip NarrowUnusedSetUpDefinedPropertyRector for property captured by lazy/self-referencing arrow function

[TomasVotruba]

Follow-up to #693.

Why

#693 stopped NarrowUnusedSetUpDefinedPropertyRector from narrowing a property
referenced inside a regular closure (no use binding → undefined local).
But it still narrows properties captured by an arrow function, which is only
safe in some cases.

An arrow function auto-captures by value at definition time. That matches the
original lazy $this->property read only when the property is already fully
assigned before the arrow function. When the assignment wraps or follows
the arrow function, the captured local is still unset:

// self-referencing type definition - the arrow fn captures $userType before the
// assignment completes, so after narrowing it captures null
$this->userType = new ObjectType([
    'fields' => fn (): array => [
        'bestFriend' => ['type' => $this->userType], // -> $userType (unset at capture) -> null
    ],
]);

Found in webonyx/graphql-php
DeferredFieldsTest (verified: breaks the deferred resolvers with
zend.assertions=1, fixed after this change, full suite otherwise unchanged).

Fix

Skip narrowing when the property is referenced inside an arrow function whose
capture happens before its assignment completes (wrapping or later assignment).
Still narrow when the property is assigned first (e.g. a mock yielded from a
generator — MockToStubSetupCombined keeps narrowing).

Added skip_property_self_referenced_in_arrow_function.php.inc.