Upgrade phpoffice/phpspreadsheet to newer version

Hi there,

I prepared a new MR to support a new version.

Tested with PhpSpreadsheet library: Installed version: 2025-02-07 - 3.9.1. version (info from the status report page) and it works fine for me.

thanks

fixed in a new 4.2.x branch
thanks

Automatically closed - issue fixed for 2 weeks with no activity.