fixup! Remove InvocationLifetime class

Author: fredrikhr

src/System.CommandLine.Hosting/HostingAction.cs

@@ -50,6 +50,12 @@ public override async Task<int> InvokeAsync(ParseResult parseResult, Cancellatio
                               ?? new HostBuilder();
             hostBuilder.Properties[typeof(ParseResult)] = parseResult;
 
+            // As long as done before first await,
+            // we can set the process termination timeout to null
+            // and let the .NET Host ConsoleLifetime deal with termination
+            parseResult.Configuration.ProcessTerminationTimeout = null;
+            hostBuilder.UseConsoleLifetime();
+
             if (parseResult.Configuration.RootCommand is RootCommand root &&
                 root.Directives.SingleOrDefault(d => d.Name == HostingDirectiveName) is { } directive)
             {