[Sync EN] intl: Return value for IntlDatePatternGenerator::getBestPattern is for IntlDateFormatter (#5567)

[github-actions]

Commit: https://github.com/php/doc-en/commit/5b6663923676dd3f48bdc916a6a2de651fd959b2
PR: https://github.com/php/doc-en/pull/5567

Archivos ES a actualizar

• reference/intl/intldatepatterngenerator/getbestpattern.xml