Fix Prometheus Using Endpoints (#2049)

Now that the version of kubernetes we're using in CI has been increased, Endpoints, which Prometheus uses by default, are deprecated and we need to add configuration to tell Prometheus to use EndpointSlices instead.

Signed-off-by: Daniel Franz <dfranz@redhat.com>

Author: dtfranz

hack/test/setup-monitoring.sh

@@ -92,6 +92,7 @@ spec:
     runAsUser: 65534
     seccompProfile:
         type: RuntimeDefault
+  serviceDiscoveryRole: EndpointSlice
   serviceMonitorSelector: {}
 EOF