Used forked etcd role

Current version of etcd role blocks our zun deployment due to trivial PR
that we're not able to merge in upstream role for some time [1].
To unblock process I fork the role. If there won't be any progress,
we likely move it to opendev.

[1] https://github.com/logan2211/ansible-etcd/pull/20

Change-Id: I37a6269a6164ef50b4f64dd4e031b870859b24e8

ansible-role-requirements.yml

@@ -245,7 +245,7 @@
   trackbranch: master
 - name: etcd
   scm: git
-  src: https://github.com/logan2211/ansible-etcd
+  src: https://github.com/noonedeadpunk/ansible-etcd
   version: master
   trackbranch: master
 - name: unbound