Update steamkit, use new cdn auth token function

Fixes #545

DepotDownloader/DepotDownloader.csproj

@@ -4,7 +4,7 @@
     <TargetFramework>net8.0</TargetFramework>
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
     <RollForward>LatestMajor</RollForward>
-    <Version>2.7.2</Version>
+    <Version>2.7.3</Version>
     <Description>Steam Downloading Utility</Description>
     <Authors>SteamRE Team</Authors>
     <Copyright>Copyright © SteamRE Team 2024</Copyright>
@@ -26,6 +26,6 @@
     </PackageReference>
     <PackageReference Include="protobuf-net" Version="3.2.30" />
     <PackageReference Include="QRCoder" Version="1.6.0" />
-    <PackageReference Include="SteamKit2" Version="3.0.0-Beta.3" />
+    <PackageReference Include="SteamKit2" Version="3.0.0-Beta.4" />
   </ItemGroup>
 </Project>

DepotDownloader/Steam3Session.cs

@@ -29,7 +29,7 @@ namespace DepotDownloader
         public Dictionary<uint, ulong> AppTokens { get; } = [];
         public Dictionary<uint, ulong> PackageTokens { get; } = [];
         public Dictionary<uint, byte[]> DepotKeys { get; } = [];
-        public ConcurrentDictionary<(uint, string), TaskCompletionSource<SteamApps.CDNAuthTokenCallback>> CDNAuthTokens { get; } = [];
+        public ConcurrentDictionary<(uint, string), TaskCompletionSource<SteamContent.CDNAuthToken>> CDNAuthTokens { get; } = [];
         public Dictionary<uint, SteamApps.PICSProductInfoCallback.PICSProductInfo> AppInfo { get; } = [];
         public Dictionary<uint, SteamApps.PICSProductInfoCallback.PICSProductInfo> PackageInfo { get; } = [];
         public Dictionary<string, byte[]> AppBetaPasswords { get; } = [];
@@ -291,7 +291,7 @@ namespace DepotDownloader
         public async Task RequestCDNAuthToken(uint appid, uint depotid, Server server)
         {
             var cdnKey = (depotid, server.Host);
-            var completion = new TaskCompletionSource<SteamApps.CDNAuthTokenCallback>();
+            var completion = new TaskCompletionSource<SteamContent.CDNAuthToken>();
 
             if (bAborted || !CDNAuthTokens.TryAdd(cdnKey, completion))
             {
@@ -300,7 +300,7 @@ namespace DepotDownloader
 
             DebugLog.WriteLine(nameof(Steam3Session), $"Requesting CDN auth token for {server.Host}");
 
-            var cdnAuth = await steamApps.GetCDNAuthToken(appid, depotid, server.Host);
+            var cdnAuth = await steamContent.GetCDNAuthToken(appid, depotid, server.Host);
 
             Console.WriteLine($"Got CDN auth token for {server.Host} result: {cdnAuth.Result} (expires {cdnAuth.Expiration})");