[Sync EN] Built-in webserver: Clarify "not supported on Windows" note (#5701)

[github-actions]

Commit: https://github.com/php/doc-en/commit/07b2f1dcff1d8beb846f5671e5f4bf2ab8d33ebf
PR: https://github.com/php/doc-en/pull/5701

Archivos ES a actualizar

• features/commandline.xml