Fix console runner not working on Windows

src/Tgstation.Server.Host.Console/Program.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -71,8 +72,10 @@ namespace Tgstation.Server.Host.Console
 				};
 
 				var watchdog = WatchdogFactory.CreateWatchdog(
-					new PosixSignalChecker(
-						loggerFactory.CreateLogger<PosixSignalChecker>()),
+					RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
+						? new NoopSignalChecker()
+						: new PosixSignalChecker(
+							loggerFactory.CreateLogger<PosixSignalChecker>()),
 					loggerFactory);
 
 				return await watchdog.RunAsync(false, arguments.ToArray(), cts.Token)

src/Tgstation.Server.Host.Watchdog/NoopSignalChecker.cs

@@ -2,18 +2,17 @@
 using System.Threading;
 using System.Threading.Tasks;
 
-using Tgstation.Server.Host.Watchdog;
-
-namespace Tgstation.Server.Host.Service
+namespace Tgstation.Server.Host.Watchdog
 {
 	/// <summary>
 	/// No-op <see cref="ISignalChecker"/>.
 	/// </summary>
-	sealed class NoopSignalChecker : ISignalChecker
+	public sealed class NoopSignalChecker : ISignalChecker
 	{
 		/// <inheritdoc />
 		public Task CheckSignals(Func<string, (int, Task)> startChild, CancellationToken cancellationToken)
 		{
+			ArgumentNullException.ThrowIfNull(startChild);
 			startChild(null);
 			return Task.CompletedTask;
 		}