chore: netip.Prefix should not using pointer

dns/dhcp.go

@@ -26,7 +26,7 @@ type dhcpClient struct {
 	ifaceInvalidate time.Time
 	dnsInvalidate   time.Time
 
-	ifaceAddr *netip.Prefix
+	ifaceAddr netip.Prefix
 	done      chan struct{}
 	clients   []dnsClient
 	err       error

dns/filters.go

@@ -45,7 +45,7 @@ func (gf *geoipFilter) Match(ip netip.Addr) bool {
 }
 
 type ipnetFilter struct {
-	ipnet *netip.Prefix
+	ipnet netip.Prefix
 }
 
 func (inf *ipnetFilter) Match(ip netip.Addr) bool {

dns/resolver.go

@@ -398,7 +398,7 @@ type NameServer struct {
 type FallbackFilter struct {
 	GeoIP     bool
 	GeoIPCode string
-	IPCIDR    []*netip.Prefix
+	IPCIDR    []netip.Prefix
 	Domain    []string
 	GeoSite   []*router.DomainMatcher
 }