Allow trusted for find_needle

In ansible find_needle is used for finding source files. This must be
allowed also for roles from trusted repos.

Change-Id: I0491bc08ba1869849a562bd5047253e60c40c7d7

tests/remote/test_remote_action_modules.py

@@ -46,6 +46,8 @@ class TestActionModules(AnsibleZuulTestCase):
             - job:
                 name: {job_name}
                 run: playbooks/{job_name}.yaml
+                roles:
+                  - zuul: org/common-config
                 nodeset:
                   nodes:
                     - name: controller