Add more fill variants #633

Job	Run time
check (build)	1m 10s
doc (docs)	1m 42s
check (pep8)	51s
test (py39, postgresql-file-upgrade-from-4.4)	2m 36s
doc (docs-gnocchi-web)	1m 25s
test (py39, mysql-file)	2m 31s
test (py39, mysql-file-sqlalchemy14)	1m 28s
test (py39, mysql-swift)	2m 37s
test (py39, mysql-s3)	2m 40s
test (py39, postgresql-file)	2m 39s
test (py39, postgresql-file-sqlalchemy14)	2m 35s
test (py39, postgresql-swift)	2m 35s
test (py39, postgresql-s3)	1m 20s
test (py311, postgresql-file-upgrade-from-4.4)	2m 38s
test (py311, mysql-file)	2m 30s
test (py311, mysql-file-sqlalchemy14)	2m 48s
test (py311, mysql-swift)	2m 30s
test (py311, mysql-s3)	2m 41s
test (py311, postgresql-file)	2m 36s
test (py311, postgresql-file-sqlalchemy14)	2m 20s
test (py311, postgresql-swift)	2m 41s
test (py311, postgresql-s3)	2m 37s
	49m 30s

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