Merge pull request #75 from geeklearningio/develop

Update nuget packages

Author: arnaudauroux

tests/GeekLearning.Storage.Integration.Test/GeekLearning.Storage.Integration.Test.csproj

@@ -22,7 +22,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0" />
     <PackageReference Include="Microsoft.NETCore.Platforms" Version="2.0.0" />
-    <PackageReference Include="xunit" Version="2.2.0" />
+    <PackageReference Include="xunit" Version="2.3.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.0.0" />
     <PackageReference Include="Microsoft.Extensions.PlatformAbstractions" Version="1.1.0" />