Update Hetzner default plan from cx22 to cx23

The cx22 plan has been deprecated by Hetzner Cloud and is no longer
available. Use cx23, which is now the smallest available shared plan.

Signed-off-by: Han Verstraete (OpenFaaS Ltd) <[email protected]>

Author: welteki

controller.go

@@ -855,7 +855,7 @@ func getHostConfig(c *Controller, tunnel *inletsv1alpha1.Tunnel, service *corev1
 		host = provision.BasicHost{
 			Name:       tunnel.Name,
 			OS:         "ubuntu-22.04", // https://docs.hetzner.cloud/#images-get-all-images
-			Plan:       "cx22",         // https://docs.hetzner.cloud/#server-types-get-a-server-type
+			Plan:       "cx23",         // https://docs.hetzner.cloud/#server-types-get-a-server-type
 			Region:     c.infraConfig.Region,
 			UserData:   userData,
 			Additional: map[string]string{},