CI: fix string templating for ansible devel (core 2.19, 12 beta) in tests (#713)

* fix string templating for ansible devel (core 2.19, 12 beta)

* fix order to prevent [ERROR]: Task failed: Module failed: 'Server_id'

* cut jinja templates from conditionals

* fix 'item' already in use

tests/integration/targets/test_mysql_user/tasks/utils/assert_user.yml

@@ -17,5 +17,7 @@
 - name: Utils | Assert user | Assert user has given privileges
   ansible.builtin.assert:
     that:
-      - "'GRANT {{ priv }} ON *.*' in result.stdout"
+      - expected_command in result.stdout
   when: priv is defined
+  vars:
+    expected_command: "GRANT {{ priv }} ON *.*"