Use config_template as a collection

Since we still use ceph-ansible that has their own implementation of
config_template module it's worth to use mentioned module as a collection
explicitly.

Depends-On: https://review.opendev.org/c/openstack/openstack-ansible/+/819814



Change-Id: I9fa37f5f781b8529874daa6deffbd47de75e28fa

tasks/octavia_policy.yml

@@ -14,7 +14,7 @@
 # limitations under the License.
 
 - name: Implement policy.yaml if there are overrides configured
-  config_template:
+  openstack.config_template.config_template:
     dest: /etc/octavia/policy.yaml
     owner: "{{ octavia_system_user_name }}"
     group: "{{ octavia_system_group_name }}"

tasks/octavia_post_install.yml

@@ -130,7 +130,7 @@
         octavia_amp_image_owner_id: "{{ get_project_info.openstack_projects[0].id }}"
 
 - name: Drop octavia Config(s)
-  config_template:
+  openstack.config_template.config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ octavia_system_user_name }}"