[Sync EN] Set the timezone in the date_sun_info() example (#5740)

[github-actions]

Commit: https://github.com/php/doc-en/commit/aac47e05048c3371bfc46d65247d7bf1c4505bf3
PR: https://github.com/php/doc-en/pull/5740

Archivos ES a actualizar

• reference/datetime/functions/date-sun-info.xml