Upgrade to .NET 6 packages

Author: RehanSaeed

Source/Boxed.AspNetCore.Swagger/Boxed.AspNetCore.Swagger.csproj

@@ -15,7 +15,7 @@
   </ItemGroup>
 
   <ItemGroup Label="Package References">
-    <PackageReference Include="Microsoft.AspNetCore.JsonPatch" Version="6.0.0-rc.2.21480.10" />
+    <PackageReference Include="Microsoft.AspNetCore.JsonPatch" Version="6.0.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.0.0" />
   </ItemGroup>
 

Source/Boxed.DotnetNewTest/Boxed.DotnetNewTest.csproj

@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup Label="Package References">
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="5.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="6.0.0" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>