LU-17815 tests: skip conf-sanity.sh test_5h

LU-17815 tests: skip conf-sanity.sh test_5h

Skip conf-sanity.sh test_5h because it always caused test_102 and
test_108 failure in recent interop testing.

Test-Parameters: trivial serverbuildno=170 serverjob=lustre-b2_12 serverdistro=el7.9 testlist=conf-sanity env=ONLY="5h 102 108",HONOR_EXCEPT=y
Test-Parameters: trivial testlist=conf-sanity

Fixes: d1b5146eda ("LU-12206 mdt: mdt_init0 failure handling")

Signed-off-by: Emoly Liu <emoly@whamcloud.com>
Change-Id: Id6ffe8b5d88e1d79883cbf2d84d73796945fc734
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55012
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Zhenyu Xu <bobijam@hotmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>