[Sync EN] Session upload progress: switch to `<simpara>` for docbook-cs

[github-actions]

Commit: https://github.com/php/doc-en/commit/b233df848d6c4297cb72845bbfc88cbe96833d65
PR: https://github.com/php/doc-en/pull/5874

Archivos ES a actualizar

• reference/session/upload-progress.xml