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

internal/provider/mullvad/updater/ips.go

@@ -1,29 +1,31 @@
 package updater
 
 import (
-	"bytes"
-	"net"
+	"net/netip"
 	"sort"
 )
 
-func uniqueSortedIPs(ips []net.IP) []net.IP {
+func uniqueSortedIPs(ips []netip.Addr) []netip.Addr {
 	uniqueIPs := make(map[string]struct{}, len(ips))
 	for _, ip := range ips {
 		key := ip.String()
 		uniqueIPs[key] = struct{}{}
 	}
 
-	ips = make([]net.IP, 0, len(uniqueIPs))
+	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)
+		}
+		if ip.Is4In6() {
+			ip = netip.AddrFrom4(ip.As4())
 		}
 		ips = append(ips, ip)
 	}
 
 	sort.Slice(ips, func(i, j int) bool {
-		return bytes.Compare(ips[i], ips[j]) < 0
+		return ips[i].Compare(ips[j]) < 0
 	})
 
 	return ips