GetNodeIP: return same values as InfoClient

addresses review comment #373 (comment)

peers/app_request_network.go

@@ -14,7 +14,6 @@ import (
 	"github.com/ava-labs/avalanchego/network"
 	snowVdrs "github.com/ava-labs/avalanchego/snow/validators"
 	"github.com/ava-labs/avalanchego/utils/constants"
-	"github.com/ava-labs/avalanchego/utils/ips"
 	"github.com/ava-labs/avalanchego/utils/logging"
 	"github.com/ava-labs/avalanchego/utils/set"
 	"github.com/ava-labs/avalanchego/vms/platformvm/warp"
@@ -176,20 +175,14 @@ func (n *AppRequestNetwork) ConnectPeers(nodeIDs set.Set[ids.NodeID]) set.Set[id
 			zap.Error(err),
 		)
 	} else if nodeIDs.Contains(apiNodeID) {
-		if apiNodeIP, err := n.infoAPI.GetNodeIP(context.Background()); err != nil {
+		if apiNodeIPPort, err := n.infoAPI.GetNodeIP(context.Background()); err != nil {
 			n.logger.Error(
 				"Failed to get API Node IP",
 				zap.Error(err),
 			)
-		} else if ipPort, err := ips.ParseAddrPort(apiNodeIP); err != nil {
-			n.logger.Error(
-				"Failed to parse API Node IP",
-				zap.String("nodeIP", apiNodeIP),
-				zap.Error(err),
-			)
 		} else {
 			trackedNodes.Add(apiNodeID)
-			n.Network.ManuallyTrack(apiNodeID, ipPort)
+			n.Network.ManuallyTrack(apiNodeID, apiNodeIPPort)
 		}
 	}
 

peers/info_client.go

@@ -5,6 +5,7 @@ package peers
 
 import (
 	"context"
+	"net/netip"
 
 	"github.com/ava-labs/avalanchego/api/info"
 	"github.com/ava-labs/avalanchego/ids"
@@ -47,9 +48,8 @@ func (i *InfoAPI) GetNodeID(ctx context.Context) (ids.NodeID, *signer.ProofOfPos
 	return i.client.GetNodeID(ctx, i.options...)
 }
 
-func (i *InfoAPI) GetNodeIP(ctx context.Context) (string, error) {
-	addrPort, err := i.client.GetNodeIP(ctx, i.options...)
-	return addrPort.Addr().String(), err
+func (i *InfoAPI) GetNodeIP(ctx context.Context) (netip.AddrPort, error) {
+	return i.client.GetNodeIP(ctx, i.options...)
 }
 
 func (i *InfoAPI) GetNodeVersion(ctx context.Context) (*info.GetNodeVersionReply, error) {