fix(test): add vector aggregator to opa-interop test

Author: maltesander

tests/templates/kuttl/opa-interop/12-assert.yaml.j2

@@ -0,0 +1,10 @@
+---
+apiVersion: kuttl.dev/v1beta1
+kind: TestAssert
+{% if lookup('env', 'VECTOR_AGGREGATOR') %}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: vector-aggregator-discovery
+{% endif %}

tests/templates/kuttl/opa-interop/12-install-vector-aggregator-discovery-configmap.yaml.j2

@@ -0,0 +1,9 @@
+{% if lookup('env', 'VECTOR_AGGREGATOR') %}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: vector-aggregator-discovery
+data:
+  ADDRESS: {{ lookup('env', 'VECTOR_AGGREGATOR') }}
+{% endif %}