Replace depreciated functions from ioutils package #758

Job	Run time
lint	19s
Check if man page has been regenerated	17s
Test bookworm with qemu backend	2m 39s
Test bookworm with uml backend	1m 15s
Test bookworm with kvm backend	58s
Test trixie with qemu backend	3m 29s
Test trixie with uml backend	1m 50s
Test trixie with kvm backend	1m 15s
Test arch with qemu backend	4m 1s
Test arch with kvm backend	1m 16s
allgreen	3s
	17m 22s

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