testapp/js: Use specific version False on nuget ref

Workaround to fix bad reference.

Author: angularsen

UnitsNet.TestApps.Uwp.JavaScript/UnitsNet.TestApps.Uwp.JavaScript.jsproj

@@ -82,7 +82,7 @@
       <HintPath>..\packages\UnitsNet.WindowsRuntimeComponent.3.40.0\lib\uap10.0\UnitsNet.winmd</HintPath>
       <IsWinMDFile>true</IsWinMDFile>
       <CopyLocal>True</CopyLocal>
-      <SpecificVersion>True</SpecificVersion>
+      <SpecificVersion>False</SpecificVersion>
     </Reference>
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\$(WMSJSProjectDirectory)\Microsoft.VisualStudio.$(WMSJSProject).targets" />