LU-17685 tests: skip nocompr test for older versions

LU-17685 tests: skip nocompr test for older versions

nocompr flag in lfs mirror extend is supported
after MDS version v2_15_61-245-g37e1316050

Fixes: 37e1316050 ("LU-17685 utils: Allow nocompr flag in lfs mirror extend")
Test-Parameters: trivial testlist=sanity-flr env=ONLY="205a 205b"
Test-Parameters: trivial testlist=sanity-flr env=ONLY="205a 205b"
Test-Parameters: trivial testlist=sanity-flr env=ONLY="205a 205b"
Signed-off-by: Alexandre Ioffe <aioffe@ddn.com>
Change-Id: I5c23e549893b9f6dbc016b79d4a6601a8320bf94
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55816
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Vitaliy Kuznetsov <vkuznetsov@ddn.com>
Reviewed-by: Colin Faber <cfaber@ddn.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>