Bump NJsonSchema from 10.0.20 to 10.0.21 (#10017)

dependabot-preview[bot] · iSazonov · commit f3a3922285cf · 2019-06-28T09:13:19.000+05:00
Bumps [NJsonSchema](https://github.com/rsuter/NJsonSchema) from 10.0.20 to 10.0.21. - [Release notes](https://github.com/rsuter/NJsonSchema/releases) - [Commits](https://github.com/rsuter/NJsonSchema/commits) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
diff --git a/src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj b/src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
@@ -57,7 +57,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.1.0" />
     <PackageReference Include="System.Threading.AccessControl" Version="4.5.0" />
-    <PackageReference Include="NJsonSchema" Version="10.0.20" />
+    <PackageReference Include="NJsonSchema" Version="10.0.21" />
   </ItemGroup>
 
 </Project>
