[Sync EN] Fix duplicate documentation for pcntl_getqos_class and pcntl_setqos_class

[github-actions]

PR: https://github.com/php/doc-en/pull/5609 (2026-06-14)

Файлы RU для обновления

• reference/pcntl/functions/pcntl-getqos-class.xml
• reference/pcntl/functions/pcntl-setqos-class.xml
• reference/pcntl/functions/pcntl_getqos_class.xml
• reference/pcntl/functions/pcntl_setqos_class.xml

[lacatoire]

Closed in #1479