Improvements to Worker.cs project template item

Fixes #8354

Author: Eilon

src/ProjectTemplates/Web.ProjectTemplates/content/Worker-CSharp/Worker.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Hosting;
@@ -19,7 +21,7 @@ protected override async Task ExecuteAsync(CancellationToken stoppingToken)
         {
             while (!stoppingToken.IsCancellationRequested)
             {
-                _logger.LogInformation($"Worker running at: {DateTime.Now}");
+                _logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
                 await Task.Delay(1000, stoppingToken);
             }
         }