[bug]Network issues in the China region

In mainland China, for some reason, the government blocks users from accessing GitHub in the normal way from time to time, which can cause some features of the launcher to fail (such as updates)

获取版本发行说明时出错. System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream. at System.Net.Security.SslStream.ReceiveBlobAsyncTIOAdapter at System.Net.Security.SslStream.ForceAuthenticationAsyncTIOAdapter at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken) --- End of inner exception stack trace --- at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(QueueItem queueItem) at System.Threading.Tasks.TaskCompletionSourceWithCancellation1.WaitWithCancellationAsync(Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.HttpConnectionWaiter1 OffsetStart, Nullable1 OffsetStart, Nullable`1 OffsetEnd, CancellationToken ThreadToken) in C:\myGit\CollapseLauncher\Hi3Helper.Http\Http.cs:line 119 at CollapseLauncher.Pages.UpdatePage.GetReleaseNote() in C:\myGit\CollapseLauncher\CollapseLauncher\XAMLs\MainApp\Pages\UpdatePage.xaml.cs:line 55

Although this is a minor issue, if possible, I would like to be able to use mirror sites when GitHub.com and related domains are detected as inaccessible, for example, to access the icon.ico in CollapseLauncher you can use https://cdn.staticaly.com/gh/neon-nyan/ Collapse/main/CollapseLauncher/icon.ico Or add a proxy option to the settings page

But in general, the problem can be fixed without any particular urgency because we have adapted to it, or without fixing it if it is difficult (but access is faster after the fix)

[Cryotechnic]

Sounds good, I’ll open the PR after re-verifying the code on my end and we can keep iterating on it should the need arise.

Edit 2023-01-01: Due to the submodule fixes pending, I had to re-create the branch from scratch and base my commits off of c3bb1a4699d187073057cbbc48448f3f43688aca in force-run-admin-pr68. Before merging the admin fixes into main, we should consider merging this into the force-run-admin-pr68, or to fix the submodule commits to push to main before proceeding @neon-nyan .

[neon-nyan]

@Cryotechnic I’ll be trying your commit and hope I could give you a feedback about it tonight.