test: change test data (#91)

* test: change test data

* use the right image

Author: v1v

tests/ironbank/templates/elastic-agent/packages.yml

@@ -59,7 +59,7 @@ shared:
   - &docker_ubi_spec
     extra_vars:
       image_name: '{{.BeatName}}-ubi9'
-      from: 'docker.elastic.co/ubi9/ubi-minimal'
+      from: 'redhat/ubi9-minimal'
 
   - &docker_arm_ubi_spec
     extra_vars: