Depend on EF 6.4.0 GA

Author: roji

Directory.Build.targets

@@ -10,10 +10,10 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Update="EntityFramework" Version="6.3.0" />
+    <PackageReference Update="EntityFramework" Version="6.4.0" />
 
     <PackageReference Update="NUnit" Version="3.12.0" />
-    <PackageReference Update="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Update="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Update="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Update="NLog" Version="4.6.7" />
   </ItemGroup>