chore: use 13.5.0-test as default ansible image temporarily

The 13.5.0 release image is not published yet; use the test tag until
the final release is available.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: patrick-hermann-sva

configurations/apps/ansible-run/apis/definition.yaml

@@ -45,7 +45,7 @@ spec:
                 ansibleWorkingImage:
                   type: string
                   description: Ansible working container image
-                  default: ghcr.io/stuttgart-things/sthings-ansible:13.5.0
+                  default: ghcr.io/stuttgart-things/sthings-ansible:13.5.0-test
                 createInventory:
                   type: string
                   description: Whether to create an Ansible inventory