delete backup folder

tasks/install.yml

@@ -41,6 +41,12 @@
       delegate_to: "{{ inventory_hostname }}"
       when: __zigbee_datadir.stat.exists
 
+    - name: Delete backup data directory
+      file:
+        path: "/tmp/zigbee_data"
+        state: absent
+      when: __zigbee2mqtt_install.changed
+
     - name: Delete existing node_modules folder
       file:
         path: "{{ zigbee2mqtt_base_dir }}/node_modules"