Get rid of distutils #783

Job	Run time
doc (docs)	1m 27s
test (py39, postgresql-file-upgrade-from-4.4)	1m 38s
doc (docs-gnocchi-web)	1m 37s
check (build)	36s
test (py39, mysql-file)	1m 45s
test (py39, mysql-file-sqlalchemy14)	1m 43s
check (pep8)	57s
test (py39, mysql-swift)	1m 45s
test (py39, mysql-s3)	1m 44s
test (py39, postgresql-file)	1m 46s
test (py39, postgresql-file-sqlalchemy14)	1m 45s
test (py39, postgresql-swift)	1m 44s
test (py39, postgresql-s3)	1m 3s
test (py311, postgresql-file-upgrade-from-4.4)	1m 29s
test (py311, mysql-file)	1m 46s
test (py311, mysql-file-sqlalchemy14)	1m 46s
test (py311, mysql-swift)	1m 44s
test (py311, mysql-s3)	1m 45s
test (py311, postgresql-file)	1m 46s
test (py311, postgresql-file-sqlalchemy14)	1s
test (py311, postgresql-swift)	1m 45s
test (py311, postgresql-s3)	1m 45s
	33m 17s

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