Update dependency SteamKit2 to 3.1.0

Author: renovate[bot]

src/Directory.Packages.props

@@ -779,7 +779,7 @@
 	</ItemGroup>
 	<!-- 👇 Steam（蒸汽平台） -->
 	<ItemGroup>
-		<PackageVersion Include="SteamKit2" Version="3.0.2">
+		<PackageVersion Include="SteamKit2" Version="3.1.0">
 		</PackageVersion>
 	</ItemGroup>
 	<!-- 👇 HighPerformance（高性能） -->