copr-fe-dev-aws: test ansible PG plugin #3

This can not work.  But the plugin should behave differently.

Relates https://pagure.io/fedora-infrastructure/issue/8675

playbooks/groups/copr-backend.yml

@@ -4,6 +4,11 @@
   gather_facts: True
 
   tasks:
+  - name: touch something in homedir
+    shell: touch ~/test.touch
+    become: yes
+    become_user: praiskup
+
   - name: Create db
     postgresql_db: name="coprdb" encoding='UTF-8'
     become: yes