Update Lib.Net.Http.EncryptedContentEncoding dependency to v1.4.0 (#6)

Author: tpeczek

Lib.Net.Http.WebPush/Lib.Net.Http.WebPush.csproj

@@ -23,7 +23,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Portable.BouncyCastle" Version="1.8.1.3" />
-    <PackageReference Include="Lib.Net.Http.EncryptedContentEncoding" Version="1.3.0" />
+    <PackageReference Include="Lib.Net.Http.EncryptedContentEncoding" Version="1.4.0" />
   </ItemGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">
     <PackageReference Include="System.Net.Http" Version="4.3.1" />