Use NuGet 6.0.6

Author: sharwell

build/build-and-test.yml

@@ -24,9 +24,9 @@ stages:
       displayName: Install .NET Core SDK
 
     - task: NuGetToolInstaller@0
-      displayName: 'Use NuGet 5.3.1'
+      displayName: 'Use NuGet 6.0.6'
       inputs:
-        versionSpec: 5.3.1
+        versionSpec: 6.0.6
 
     - task: NuGetCommand@2
       displayName: 'NuGet restore'

build/test.yml

@@ -31,9 +31,9 @@ jobs:
     displayName: Install .NET Core SDK
 
   - task: NuGetToolInstaller@0
-    displayName: 'Use NuGet 5.3.1'
+    displayName: 'Use NuGet 6.0.6'
     inputs:
-      versionSpec: 5.3.1
+      versionSpec: 6.0.6
 
   - task: DownloadPipelineArtifact@2
     displayName: 🔻 Download solution packages