bump Elastic.Xunit, previous commit upgraded to an older version as I was to eager and CI was still rolling

Author: Mpdreamz

src/Tests/Tests.csproj

@@ -39,7 +39,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Bogus" Version="22.1.2" />
-    <PackageReference Include="Elastic.Xunit" Version="0.1.0-ci20180604T145809" />
+    <PackageReference Include="Elastic.Xunit" Version="0.1.0-ci20180614T131538" />
     <PackageReference Include="FluentAssertions" Version="4.19.2" />
     <PackageReference Include="DiffPlex" Version="1.4.1" />
     <PackageReference Include="System.Reactive" Version="3.1.1" />