Tests

doc: Update references to mage docs #1418

Job	Run time
Code	7m 40s
Client (1.21.x, ubuntu-latest)	1m 10s
Client (1.21.x, macos-latest)	37s
Client (1.21.x, windows-latest)	1m 55s
System (1.21.x, cluster, dir)	11m 57s
System (1.21.x, cluster, btrfs)	11m 54s
Documentation	6m 20s
System (1.21.x, cluster, lvm)	12m 20s
System (1.21.x, cluster, zfs)	11m 44s
System (1.21.x, cluster, ceph)	15m 24s
System (1.21.x, cluster, random)	11m 54s
System (1.21.x, standalone, dir)	20m 55s
System (1.21.x, standalone, btrfs)	21m 42s
System (1.21.x, standalone, lvm)	39m 48s
System (1.21.x, standalone, zfs)	38m 8s
System (1.21.x, standalone, ceph)	1h 12m 53s
System (1.21.x, standalone, random)	22m 12s
System (stable, cluster, dir)	10m 31s
System (stable, standalone, dir)	20m 34s
System (tip, cluster, dir)	11m 29s
System (tip, standalone, dir)	22m 23s
	6h 13m 30s

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