Fix arguments for SafeTLSConfig to use prometheus client 0.75.2

The function for `SafeTLSConfig` changed to accept a pointer to a
string instead of a string. Update our usage so that the dependency bump
doesn't fail.

cmd/manager/operator.go

@@ -682,6 +682,7 @@ func getDefaultRoles(platform PlatformType) []string {
 }
 
 func generateOperatorServiceMonitor(service *v1.Service, namespace, secretName string) *monitoring.ServiceMonitor {
+	serverName := "metrics." + namespace + ".svc"
 	serviceMonitor := GenerateServiceMonitor(service)
 	for i := range serviceMonitor.Spec.Endpoints {
 		if serviceMonitor.Spec.Endpoints[i].Port == ctrlMetrics.ControllerMetricsServiceName {
@@ -698,7 +699,7 @@ func generateOperatorServiceMonitor(service *v1.Service, namespace, secretName s
 			}
 			serviceMonitor.Spec.Endpoints[i].TLSConfig = &monitoring.TLSConfig{
 				SafeTLSConfig: monitoring.SafeTLSConfig{
-					ServerName: "metrics." + namespace + ".svc",
+					ServerName: &serverName,
 				},
 				CAFile: serviceMonitorTLSCAFile,
 			}

cmd/manager/operator_test.go

@@ -26,9 +26,10 @@ var _ = Describe("Operator Startup Function tests", func() {
 				metricService := operatorMetricService("foobar")
 				sm := generateOperatorServiceMonitor(metricService, "foobar", "secret")
 				controllerMetricServiceFound := false
+				expectedServerName := "metrics.foobar.svc"
 				for _, ep := range sm.Spec.Endpoints {
 					if ep.Port == metrics.ControllerMetricsServiceName && ep.TLSConfig != nil {
-						Expect(ep.TLSConfig.ServerName).To(BeEquivalentTo("metrics.foobar.svc"))
+						Expect(ep.TLSConfig.ServerName).To(BeEquivalentTo(&expectedServerName))
 						controllerMetricServiceFound = true
 					}
 				}