Pull request 2263: AGDNS-2280 Upd dnsproxy, golibs

Squashed commit of the following:

commit 8d83eebba851e8e09bb08b1c94a247cb049a1b75
Merge: c6574a33c b6ed76965
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Aug 5 16:59:50 2024 +0300

    Merge branch 'master' into AGDNS-2280-upd-golibs

commit c6574a33c62171190199c8c07118d0ecd2174801
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jul 31 19:56:58 2024 +0300

    all: upd proxy, golibs

internal/aghtls/aghtls.go

@@ -5,9 +5,10 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
-	"net/netip"
+	"slices"
 
 	"github.com/AdguardTeam/golibs/log"
+	"github.com/AdguardTeam/golibs/netutil"
 )
 
 // init makes sure that the cipher name map is filled.
@@ -75,15 +76,5 @@ func SaferCipherSuites() (safe []uint16) {
 // CertificateHasIP returns true if cert has at least a single IP address among
 // its subjectAltNames.
 func CertificateHasIP(cert *x509.Certificate) (ok bool) {
-	if len(cert.IPAddresses) > 0 {
-		return true
-	}
-
-	for _, name := range cert.DNSNames {
-		if _, err := netip.ParseAddr(name); err == nil {
-			return true
-		}
-	}
-
-	return false
+	return len(cert.IPAddresses) > 0 || slices.ContainsFunc(cert.DNSNames, netutil.IsValidIPString)
 }