Disable AltSvc blocklist for prenegotiated HTTP/3 connections

### Description

When working with an HTTP/3 only server, `HttpClient` refuses to reconnect to the server if the previous connection attempt failed or an established was aborted.

Since the server is HTTP/3 only, `HttpClient` will not be able to create new HTTP/3 connections to the server by upgrading from HTTP/1 or HTTP/2. Thus a wait of 10 minutes is forced by the AltSvc blocklist.

### Reproduction Steps

Server:
```csharp
using Microsoft.AspNetCore.Server.Kestrel.Core;

var builder = WebApplication.CreateBuilder(args);
builder.WebHost.UseKestrel((context, options) =>
{
options.ListenAnyIP(5000, listenOptions =>
{
listenOptions.Protocols = HttpProtocols.Http3;
listenOptions.UseHttps();
});
});

var app = builder.Build();
app.MapGet("/hello", () =>
{
return "Hello World";
});

app.Run();
```

Client:
```csharp
using System.Net;

var client = new HttpClient(new SocketsHttpHandler
{
EnableMultipleHttp3Connections = true,
PooledConnectionIdleTimeout = Timeout.InfiniteTimeSpan,
KeepAlivePingDelay = TimeSpan.FromSeconds(60),
KeepAlivePingTimeout = TimeSpan.FromSeconds(30),
KeepAlivePingPolicy = HttpKeepAlivePingPolicy.Always,
})
{
DefaultRequestVersion = HttpVersion.Version30,
DefaultVersionPolicy = HttpVersionPolicy.RequestVersionExact
};

while (true)
{
try
{
Console.WriteLine(await client.GetStringAsync("https://localhost:5000/hello"));
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
await Task.Delay(1000);
}

```

Run the server after starting the client. Or run the client after starting the server and then restart the server after receiving several requests.

### Expected behavior

`HttpClient` should reconnect immediately when the server is started.

### Actual behavior

`HttpClient` reconnects to the server after waiting for 10 minutes.

### Regression?

_No response_

### Known Workarounds

_No response_

### Configuration

_No response_

### Other information

_No response_