Replace deprecated "include" directive in Ansible 2.4

tasks/main.yml

@@ -22,9 +22,9 @@
     register: last_result
     ignore_errors: yes
 
-  - include: prepare.yml
+  - include_tasks: prepare.yml
     when: "last_result is defined and last_result.stdout != oracle_version"
 
-  - include: configure.yml
+  - include_tasks: configure.yml
 
   when: '"oracle" not in excluded_roles'