ansible-lint: Fix yaml[truthy] in haproxy-config role

Change-Id: Ie83e990414aa19973b26185b47e1a575f52db288
Signed-off-by: Michal Nasiadka <mnasiadka@gmail.com>

Author: mnasiadka

ansible/roles/haproxy-config/tasks/main.yml

@@ -24,7 +24,7 @@
   vars:
     service: "{{ item.value }}"
   blockinfile:
-    create: yes
+    create: true
     path: "{{ node_config_directory }}/haproxy/external-frontend-map"
     insertafter: EOF
     marker: "# {mark} {{ item.key }}"