Upgrade ApplicationInsights 2.13.1 (Azure#348)

* Upgrade ApplicationInsights

* update code after review

* remove using

* revise code after review

Author: dingmeng-xue

src/Common/AzurePSCmdlet.cs

@@ -765,7 +765,6 @@ protected void LogQosEvent()
             {
                 _metricHelper.LogQoSEvent(_qosEvent, IsUsageMetricEnabled, IsErrorMetricEnabled);
                 _metricHelper.FlushMetric();
-                WriteDebug("Finish sending metric.");
             }
             catch (Exception e)
             {

src/Common/Common.csproj

@@ -63,7 +63,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.ApplicationInsights" Version="2.12.0" />
+    <PackageReference Include="Microsoft.ApplicationInsights" Version="2.13.1" />
   </ItemGroup>
 
   <ItemGroup>

src/Common/MetricHelper.cs

@@ -16,8 +16,8 @@
 using Microsoft.ApplicationInsights.DataContracts;
 using Microsoft.ApplicationInsights.Extensibility;
 using Microsoft.Azure.Commands.Common;
-using Microsoft.Azure.Commands.Common.Authentication.Abstractions;
 using Microsoft.Azure.Commands.Common.Authentication;
+using Microsoft.Azure.Commands.Common.Authentication.Abstractions;
 using Microsoft.Azure.PowerShell.Common.Share;
 using Microsoft.Rest.Azure;
 using Microsoft.WindowsAzure.Commands.Common.Utilities;
@@ -31,13 +31,13 @@
 using System.Management.Automation.Host;
 using System.Security.Cryptography;
 using System.Text;
+using System.Threading.Tasks;
 
 namespace Microsoft.WindowsAzure.Commands.Common
 {
     public class MetricHelper
     {
         protected INetworkHelper _networkHelper;
-        private const int FlushTimeoutInMilli = 5000;
         private const string DefaultPSVersion = "3.0.0.0";
         private const string EventName = "cmdletInvocation";
 
@@ -481,17 +481,25 @@ public void FlushMetric()
                 return;
             }
 
-            try
+            Task flushMetricTask = FlushMetricAsync(TelemetryClients);
+        }
+
+        private async Task FlushMetricAsync(IEnumerable<TelemetryClient> TelemetryClients)
+        {
+            await Task.Run(() =>
             {
                 foreach (TelemetryClient client in TelemetryClients)
                 {
-                    client.Flush();
+                    try
+                    {
+                        client.Flush();
+                    }
+                    catch
+                    {
+                        // ignored
+                    }
                 }
-            }
-            catch
-            {
-                // ignored
-            }
+            });
         }
 
         /// <summary>