setup: replace distutils.command.clean.clean by setuptool.Command #255

Job	Run time
unittest (debian:bookworm-slim)	32s
unittest (debian:testing-slim)	38s
unittest (debian:unstable-slim)	36s
yamllint	13s
unittest (ubuntu:jammy)	44s
system-testing (debian:unstable-slim)	2m 46s
unittest (ubuntu:mantic)	36s
install (debian:bookworm-slim)	26s
system-testing (ubuntu:jammy)	4m 1s
system-testing (ubuntu:mantic)	4m 1s
install (debian:testing-slim)	38s
install (debian:unstable-slim)	29s
install (ubuntu:jammy)	21s
install (ubuntu:mantic)	34s
	16m 35s

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