LU-14327 tests: skip sanity-sec test 55 for older servers

LU-14327 tests: skip sanity-sec test 55 for older servers

sanity-sec test 55 was added to lustre-b2_12 version
2.12.6.3.  When we run version interop testing with
Lustre servers less than 2.12.6.3, the test will fail.
Thus, skip sanity-sec test 55 for Lustre servers less
than 2.12.6.3.

Lustre-change: https://review.whamcloud.com/43949
Lustre-commit: abda4d06a41dfb526b4a66cb5fae6ff1a4c6c01b

Fixes: 355787745f21 (“LU-14121 nodemap: do not force fsuid/fsgid squashing”)

Test-Parameters: trivial
Test-Parameters: serverversion=2.10.8 serverdistro=el7.6 env=ONLY=55 testlist=sanity-sec
Signed-off-by: James Nunez <jnunez@whamcloud.com>
Change-Id: Ie002c921e853897105396185b38485799df31b7a
Reviewed-on: https://review.whamcloud.com/43950
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Wei Liu <sarah@whamcloud.com>
Reviewed-by: Vikentsi Lapa <vlapa@whamcloud.com>