tests: Fix online remote admin tests #15

Job	Run time
Code tests	10m 32s
Documentation tests	9m 54s
Client tests (1.18.x, ubuntu-latest)	43s
Client tests (1.18.x, macos-latest)	1m 6s
Client tests (1.18.x, windows-latest)	2m 21s
System tests (1.18.x, cluster, dir)	13m 0s
System tests (1.18.x, cluster, btrfs)	13m 51s
System tests (1.18.x, cluster, lvm)	14m 2s
System tests (1.18.x, cluster, zfs)	14m 7s
System tests (1.18.x, cluster, ceph)	19m 18s
System tests (1.18.x, cluster, random)	15m 29s
System tests (1.18.x, standalone, dir)	21m 57s
System tests (1.18.x, standalone, btrfs)	21m 44s
System tests (1.18.x, standalone, lvm)	28m 27s
System tests (1.18.x, standalone, zfs)	28m 27s
System tests (1.18.x, standalone, ceph)	28m 28s
System tests (1.18.x, standalone, random)	28m 27s
System tests (stable, cluster, dir)	12m 19s
System tests (stable, standalone, dir)	23m 50s
System tests (tip, cluster, dir)	13m 33s
System tests (tip, standalone, dir)	22m 13s
	5h 43m 48s

Provide feedback