Add VPN protocols - #2

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Avoid inexact read with 'QuickProxyNet.RealityTlsStream.ReadAsync(System.Memory<byte>, System.Threading.CancellationToken)' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2022)

Avoid inexact read with 'QuickProxyNet.RealityTlsStream.ReadAsync(System.Memory<byte>, System.Threading.CancellationToken)' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2022)

Avoid inexact read with 'QuickProxyNet.RealityTlsStream.ReadAsync(System.Memory<byte>, System.Threading.CancellationToken)' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2022)