deal with TFM-specific warnings from .NET 10

Author: mgravell

src/StackExchange.Redis/ConfigurationOptions.cs

@@ -340,7 +340,9 @@ internal static LocalCertificateSelectionCallback CreatePemUserCertificateCallba
 
         internal static LocalCertificateSelectionCallback CreatePfxUserCertificateCallback(string userCertificatePath, string? password, X509KeyStorageFlags storageFlags = X509KeyStorageFlags.DefaultKeySet)
         {
+#pragma warning disable SYSLIB0057
             var pfx = new X509Certificate2(userCertificatePath, password ?? "", storageFlags);
+#pragma warning restore SYSLIB0057
             return (sender, targetHost, localCertificates, remoteCertificate, acceptableIssuers) => pfx;
         }
 
@@ -351,7 +353,9 @@ internal static LocalCertificateSelectionCallback CreatePfxUserCertificateCallba
         public void TrustIssuer(X509Certificate2 issuer) => CertificateValidationCallback = TrustIssuerCallback(issuer);
 
         internal static RemoteCertificateValidationCallback TrustIssuerCallback(string issuerCertificatePath)
+#pragma warning disable SYSLIB0057
             => TrustIssuerCallback(new X509Certificate2(issuerCertificatePath));
+#pragma warning restore SYSLIB0057
         private static RemoteCertificateValidationCallback TrustIssuerCallback(X509Certificate2 issuer)
         {
             if (issuer == null) throw new ArgumentNullException(nameof(issuer));

src/StackExchange.Redis/ExceptionFactory.cs

@@ -107,7 +107,7 @@ internal static Exception NoConnectionAvailable(
                 serverSnapshot = new ServerEndPoint[] { server };
             }
 
-            var innerException = PopulateInnerExceptions(serverSnapshot == default ? multiplexer.GetServerSnapshot() : serverSnapshot);
+            var innerException = PopulateInnerExceptions(serverSnapshot.IsEmpty ? multiplexer.GetServerSnapshot() : serverSnapshot);
 
             // Try to get a useful error message for the user.
             long attempts = multiplexer._connectAttemptCount, completions = multiplexer._connectCompletedCount;

src/StackExchange.Redis/PhysicalConnection.cs

@@ -913,7 +913,7 @@ internal void WriteHeader(RedisCommand command, int arguments, CommandBytes comm
         internal void RecordQuit()
         {
             // don't blame redis if we fired the first shot
-            Thread.VolatileWrite(ref clientSentQuit, 1);
+            Volatile.Write(ref clientSentQuit, 1);
             (_ioPipe as SocketConnection)?.TrySetProtocolShutdown(PipeShutdownKind.ProtocolExitClient);
         }