Ensure TLS verification is enabled in Istio Destination Rules

Enabling end-to-end TLS encryption can help keep data in-transit protected from man-in-the-middle and similar attacks.

Enable TLS for Istio Destination Rules by configuring 'tls' key with relevant parameters in the DestinationRule YAML configuration file. For more information on the configuration, see the Istio documentation.

References:
https://istio.io/latest/docs/reference/config/networking/destination-rule/#ClientTLSSettings