Update Simplify.Web requirement from 4.2.* to 4.4.*

Updates the requirements on [Simplify.Web](https://github.com/SimplifyNet/Simplify.Web) to permit the latest version.
- [Release notes](https://github.com/SimplifyNet/Simplify.Web/releases)
- [Commits](SimplifyNet/Simplify.Web@4.2...4.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

Simplify.Web.MessageBox/Simplify.Web.MessageBox.csproj

@@ -31,6 +31,6 @@
 		<Content Include="Templates\App_Packages\Simplify.Web.MessageBox\OkMessageBox.tpl" />
 	</ItemGroup>
 	<ItemGroup>
-		<PackageReference Include="Simplify.Web" Version="4.2.*" />
+		<PackageReference Include="Simplify.Web" Version="4.4.*" />
 	</ItemGroup>
 </Project>