Bug 23384: fix syntax to work with ansible 2.2

https://docs.ansible.com/ansible/latest/porting_guide_2.0.html#deprecated

tools/ansible/roles/tbb-team/tasks/main.yml

@@ -5,11 +5,11 @@
       state: present
       groups: tbb-build
       shell: /bin/bash
-  with_items: tbb_team_members
+  with_items: "{{ tbb_team_members }}"
 
 - name: Add ssh keys to authorized_keys
   authorized_key:
       user: "{{ item }}"
       state: present
       key: "{{ lookup('file', item + '.pub') }}"
-  with_items: tbb_team_members
+  with_items: "{{ tbb_team_members }}"