Add missing scheme to ServiceMonitor

The commit db30aab attempted to add TLS
to the service monitor but it forgot to change the scheme to https and
this was noticed during QE for the ticket associated with that commit

Solves MGMT-14756

internal/controller/controllers/agentserviceconfig_controller.go

@@ -670,7 +670,8 @@ func newServiceMonitor(ctx context.Context, log logrus.FieldLogger, asc ASC) (cl
 
 		addAppLabel(serviceName, &sm.ObjectMeta)
 		sm.Spec.Endpoints = []monitoringv1.Endpoint{{
-			Port: serviceName,
+			Port:   serviceName,
+			Scheme: "https",
 			TLSConfig: &monitoringv1.TLSConfig{
 				CAFile: "/etc/prometheus/configmaps/serving-certs-ca-bundle/service-ca.crt",
 				SafeTLSConfig: monitoringv1.SafeTLSConfig{

internal/controller/controllers/agentserviceconfig_controller_test.go

@@ -1104,6 +1104,7 @@ var _ = Describe("newServiceMonitor", func() {
 		Expect(len(found.Spec.Endpoints)).To(Equal(1))
 		endpoint := found.Spec.Endpoints[0]
 		Expect(endpoint.TLSConfig.CAFile).To(Equal("/etc/prometheus/configmaps/serving-certs-ca-bundle/service-ca.crt"))
+		Expect(endpoint.Scheme).To(Equal("https"))
 		Expect(endpoint.TLSConfig.ServerName).To(Equal("assisted-service.test-namespace.svc"))
 	})
 })