Fix typo in old devture-traefik migration task

roles/custom/matrix_playbook_migration/tasks/devture_traefik_to_matrix_traefik.yml

@@ -7,7 +7,7 @@
 # The Traefik role itself (running later) will then ensure this data is up-to-date and will set up the new systemd service.
 
 # It only makes sense to migrate if the identifier or path are different than the default (what we were using before).
-- when: "devture_traefik_identifier != 'devture-postgres' or devture_traefik_base_path != '/devture-traefik'"
+- when: "devture_traefik_identifier != 'devture-traefik' or devture_traefik_base_path != '/devture-traefik'"
   block:
     - name: Check existence of devture-traefik.service systemd service
       ansible.builtin.stat: