LU-18904 tests: skip sanity/230k for older servers

LU-18904 tests: skip sanity/230k for older servers

This patch skips sanity/230k for older servers until
the real issue is fixed.

Test-Parameters: trivial
Test-Parameters: testlist=sanity env=ONLY=230k serverversion=2.12

Change-Id: I82c10fc6da614ae4ca85724011c22ddfd443b894
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/58722
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Rajeev Mishra <rajeevm@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>