Fix cancellation token

[shishnk]

Investigate and resolve the issue with the cancellation token where it seems to be getting lost or not propagated correctly, causing requests to fail.

[TheActualTwinkle]

Устроил investigate , и...
Я (почти) уверен что дело в _settings.Token в TelegramCommandFactory.cs:82

command.SetHandler(async context =>
{
    var telegramId = context.ParseResult.GetValueForOption(_globalOption);
    var result = await telegramCommand.Execute(
        context,
        telegramId,
        GetValueForArgument,
        _bus,
        _cacheService,
        _messageService,
        _settings.Token);
    _results.TryAdd(telegramId, result.Value);
});

Следует передавать токен созданный в TelegramBot.cs:50

using var cts = new CancellationTokenSource(_settings.Timeout);