fix: csproj version

Author: CypherPotato

frameworks/CSharp/sisk/sisk/sisk.csproj

@@ -9,7 +9,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-    <PackageReference Include="Sisk.HttpServer" Version="1.3.2" />
+		<PackageReference Include="Sisk.HttpServer" Version="1.4.0-beta3" />
 	</ItemGroup>
 
 </Project>