python-icalendar: update to 4.0.1.
python-icalendar: update to 4.0.1.

Closes: #11581 [via git-merge-pr]

NeoChontrix/void-packages,coredumb/void-packages,necrophcodr/void-packages,coredumb/void-packages,NeoChontrix/void-packages,coredumb/void-packages,coredumb/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,coredumb/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,coredumb/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages