Update Handlebars.Net to 1.9.4 (signed).

Author: Anthony Sneed

src/EntityFrameworkCore.Scaffolding.Handlebars/EntityFrameworkCore.Scaffolding.Handlebars.csproj

@@ -39,7 +39,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Handlebars.Net.Signed" Version="1.9.3" />
+    <PackageReference Include="Handlebars.Net" Version="1.9.4" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.1.0-rc1-final" />
   </ItemGroup>