playbook/ors: create /opt/upgrader if it doesn't exist

Otherwise playbook will fail upon first installation
because we save logs to /opt/upgrader in ors playbook,
and launch upgrader playbook later

playbook/roles/ors/tasks/main.yml

 ---
 
+  - name: Create /opt/upgrader where some logs will be stored
+    file: path=/opt/upgrader state=directory mode=0755
+
 # Legacy
 
   - name: Remove obsolete cron

playbook/sha256sum

-854b576529267f942a8fc70331c440bd16e3a8256ec3824b5454a60ab71c127b  -
+d24a3bdc3228e086b49fca9dfb3f6e000d9feb2964015925c07514d7b1d89f34  -