Description:
Setting ipFamily: IPv4 on a dual stack, IPv6-first cluster should result in an IPv4 Service. Instead envoy-gateway creates a single stack, IPv6 Service.

Repro steps:
Set up an EnvoyProxy with spec.ipFamily: IPv4 on a dual-stack, IPv6-first cluster.

Environment:
Envoy gateway v1.4.1

Logs:
None relevant