use "NuGet.CommandLine" version="6.8.0" instead of 6.6.1

Author: chcg

builder/builder/Nuspec.cs

@@ -86,7 +86,7 @@ private static void CreateNuspec(
             nuspec.CreateDocument().Save(nuspecFile);
             Process.Start(
                 new ProcessStartInfo(
-                    @"..\..\..\packages\NuGet.CommandLine.6.6.1\tools\nuget.exe",
+                    @"..\..\..\packages\NuGet.CommandLine.6.8.0\tools\nuget.exe",
                     "pack " + nuspecFile)
                 {
                     UseShellExecute = false,
@@ -96,7 +96,7 @@ private static void CreateNuspec(
             {
 /*                 var p = Process.Start(
                   new ProcessStartInfo(
-                      @"..\..\..\packages\NuGet.CommandLine.6.6.1\tools\nuget.exe",
+                      @"..\..\..\packages\NuGet.CommandLine.6.8.0\tools\nuget.exe",
                       $"push {nupkgFile} -Source https://api.nuget.org/v3/index.json -ApiKey {ApiKey.Value}")
                   {
                       UseShellExecute = false,

builder/builder/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Framework.G1" version="1.0.13.0" targetFramework="net45" userInstalled="true" />
-  <package id="NuGet.CommandLine" version="6.6.1" targetFramework="net48" userInstalled="true" developmentDependency="true" />
+  <package id="NuGet.CommandLine" version="6.8.0" targetFramework="net48" userInstalled="true" developmentDependency="true" />
 </packages>

builder/builderTest/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Framework.G1" version="1.0.13.0" targetFramework="net451" />
-  <package id="NuGet.CommandLine" version="6.6.1" targetFramework="net48" developmentDependency="true" />
+  <package id="NuGet.CommandLine" version="6.8.0" targetFramework="net48" developmentDependency="true" />
 </packages>