fix(kuma-cp): order ExternalServices for building VIPs (#7333)

Signed-off-by: Lukasz Dziedziak <lukidzi@gmail.com>

pkg/dns/vips_allocator.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"net"
+	"sort"
 	"strings"
 
 	"github.com/pkg/errors"
@@ -226,6 +227,12 @@ func (d *VIPsAllocator) BuildVirtualOutboundMeshView(ctx context.Context, mesh s
 	if err := d.rm.List(ctx, &externalServices, store.ListByMesh(mesh)); err != nil {
 		return nil, err
 	}
+	// TODO(lukidzi): after switching to use the resource store as in the code for tests
+	// we should switch to `ListOrdered` https://github.com/kumahq/kuma/issues/7356
+	sort.SliceStable(externalServices.Items, func(i, j int) bool {
+		return (externalServices.Items[i].GetMeta().GetName() < externalServices.Items[j].GetMeta().GetName())
+	})
+
 	for _, es := range externalServices.Items {
 		tags := map[string]string{mesh_proto.ServiceTag: es.Spec.GetService()}
 		if d.serviceVipEnabled {