test(opa): Fix custom images for OPA

Author: NickLarsenNZ

tests/templates/kuttl/opa/20-install-opa.yaml.j2

@@ -10,12 +10,11 @@ metadata:
   name: opa
 spec:
   image:
-    productVersion: "{{ test_scenario['values']['opa-latest'] }}"
 {% if test_scenario['values']['opa-latest'].find(",") > 0 %}
-          custom: "{{ test_scenario['values']['opa-latest'].split(',')[1] }}"
-          productVersion: "{{ test_scenario['values']['opa-latest'].split(',')[0] }}"
+    custom: "{{ test_scenario['values']['opa-latest'].split(',')[1] }}"
+    productVersion: "{{ test_scenario['values']['opa-latest'].split(',')[0] }}"
 {% else %}
-          productVersion: "{{ test_scenario['values']['opa-latest'] }}"
+    productVersion: "{{ test_scenario['values']['opa-latest'] }}"
 {% endif %}
     pullPolicy: IfNotPresent
   clusterConfig: