Update ansible-lint to 3.4.12

A newer ansible-lint is required for ansible 2.3 compatibility.
Roles are installed within the linters test through git clone instead of
galaxy to avoid an upstream Ansible bug[0].

[0] https://github.com/ansible/ansible/issues/22572

Change-Id: I9b7bb57b60a0596912934d368aba796397e31ad0

tox.ini

@@ -92,8 +92,8 @@ commands =
 [testenv:ansible]
 deps =
     {[testenv]deps}
-    ansible==2.2.0
-    ansible-lint<=3.4.1
+    ansible==2.3.0.0
+    ansible-lint<=3.4.12
 setenv =
     {[testenv]setenv}
     ANSIBLE_HOST_KEY_CHECKING = False
@@ -106,9 +106,10 @@ setenv =
     ANSIBLE_ROLES_PATH = {homedir}/.ansible/roles
 commands =
     rm -rf {homedir}/.ansible/roles
-    ansible-galaxy install \
-                   --role-file={toxinidir}/ansible-role-requirements.yml \
-                   --force
+    ansible-playbook -i 'localhost,' \
+                     -e role_file={toxinidir}/ansible-role-requirements.yml \
+                     -e role_path_default={homedir}/.ansible/roles \
+                     {toxinidir}/tests/get-ansible-role-requirements.yml
 
 
 [testenv:ansible-lint]