Add fails_on_posix mark

Signed-off-by: Samarah Uriarte <samarah.uriarte@ibm.com>

Author: samarahu

pytest.ini

@@ -14,11 +14,11 @@ markers =
     checksum
     cloud_transition
     cloud_restore
-    copy
     encryption
     fails_on_aws
     fails_on_dbstore
     fails_on_dho
+    fails_on_posix
     fails_on_mod_proxy_fcgi
     fails_on_rgw
     fails_on_s3
@@ -35,7 +35,6 @@ markers =
     lifecycle_transition
     list_objects_v2
     object_lock
-    object_ownership
     role_policy
     session_policy
     s3select