[Sync EN] Document the PHP 8.5 backward incompatible changes (#5837)

[github-actions]

Commit: https://github.com/php/doc-en/commit/4fc9f9ea7ba36a383613ede343a0820f5cc46aa2
PR: https://github.com/php/doc-en/pull/5837

Archivos ES a actualizar

• language/oop5/changelog.xml
• language/oop5/traits.xml
• language/oop5/variance.xml
• language/operators/comparison.xml
• language/predefined/attributes/attribute.xml
• language/types/integer.xml
• reference/array/functions/list.xml
• reference/funchand/functions/register-tick-function.xml
• reference/spl/arrayiterator/construct.xml
• reference/spl/arrayobject/construct.xml