Try fix.

tasks/main.yml

@@ -47,18 +47,17 @@
   become: true
 
 - setup:
-  register: dfacts
-- debug: var=dfacts
-- ansible.builtin.meta: end_host
 
 - name: mount /mnt/volumes/{{ volume.name }}
   ansible.posix.mount:
     path: "/mnt/volumes/{{ volume.name }}"
-    src: "{{ volume_output.attachments[0].device }}"
+    src: "{{ ansible_facts['ansible_device_links']['uuids'][volume_output.attachments[0].device.split('/')[-1]][0] }}"
     fstype: ext4
     state: mounted
   become: true
 
+- ansible.builtin.meta: end_host
+
 - name: Create /mnt/volumes/{{ volume.name }}/data directory
   ansible.builtin.file:
     path: "/mnt/volumes/{{ volume.name }}/data"