Updated dependencies

Author: ENikS

tests/Interception.Tests.csproj

@@ -9,9 +9,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.6.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="1.2.0" />
-    <PackageReference Include="MSTest.TestFramework" Version="1.2.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.0-preview-20180221-13" />
+    <PackageReference Include="MSTest.TestAdapter" Version="1.3.0-beta2" />
+    <PackageReference Include="MSTest.TestFramework" Version="1.3.0-beta2" />
   </ItemGroup>
 
   <ItemGroup>