contrib/test/int: allow to skip user namespace testing
Just add the 'userns_int_test_skip' boolean var.
environment: '{{ int_test_env | combine(userns_int_test_env) }} '
async: '{{ int_test_timeout | default(60 * 30) }}' # seconds
poll: 30
+ when: userns_int_test_skip is not defined or not userns_int_test_skip
always:
