intg: Add sample infopipe test in cwrap env
    
    Resolves:
    https://pagure.io/SSSD/sssd/issue/2823
    
    Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
    Reviewed-by: Pavel Březina <pbrezina@redhat.com>
    (cherry picked from commit 0df79781d78973e5462dbef1e89d8fd6001da05c)