grpc resolver.ClientConn NewAddress method is deprecated

[GoosvandenBekerom]

While looking through the code to understand it a bit better I saw that a deprecated method of the resolver.ClientConn interface is being used here https://github.com/sercand/kuberesolver/blob/master/builder.go#L240

https://pkg.go.dev/google.golang.org/grpc/resolver#ClientConn states that UpdateState should be used instead

[philipgriggs]

@sercand There's a few places where deprecated code from google.golang.org/grpc is being used (for example here). This breaks upstream dependencies when the version is set to google.golang.org/grpc v1.58.0

See github.com/grpc/grpc-go/releases/tag/v1.58.0

resolver: remove deprecated AddressType (grpc/grpc-go#6451)

This was previously used as a signal to enable the "grpclb" load balancing policy, and to pass LB addresses to the policy. Instead, balancer/grpclb/state.Set() should be used to add these addresses to the name resolver's output. The built-in "dns" name resolver already does this.

I think this line could just be removed