chore(all): replace net.IP with netip.Addr

internal/updater/resolver/ips.go

@@ -1,15 +1,20 @@
 package resolver
 
-import "net"
+import (
+	"net/netip"
+)
 
-func uniqueIPsToSlice(uniqueIPs map[string]struct{}) (ips []net.IP) {
-	ips = make([]net.IP, 0, len(uniqueIPs))
+func uniqueIPsToSlice(uniqueIPs map[string]struct{}) (ips []netip.Addr) {
+	ips = make([]netip.Addr, 0, len(uniqueIPs))
 	for key := range uniqueIPs {
-		IP := net.ParseIP(key)
-		if IPv4 := IP.To4(); IPv4 != nil {
-			IP = IPv4
+		ip, err := netip.ParseAddr(key)
+		if err != nil {
+			panic(err)
 		}
-		ips = append(ips, IP)
+		if ip.Is4In6() {
+			ip = netip.AddrFrom4(ip.As4())
+		}
+		ips = append(ips, ip)
 	}
 	return ips
 }