ipatests: rename 'ipatuura' directory to 'scim' in bridge tests
    
    A recent commit [1] in ipa-tuura project renamed the 'ipatuura' django app
    to 'scim'. Change it in IPA side as well to fix tests.
    
    [1]: https://github.com/freeipa/ipa-tuura/commit/f12592cea496818af782f953e0e9643c9ea440b5
    
    Fixes: https://pagure.io/freeipa/issue/9447
    
    Signed-off-by: Antonio Torres <antorres@redhat.com>
    Reviewed-By: Francisco Trivino <ftrivino@redhat.com>