Bump SteamKit2 from 3.2.0 to 3.3.0

---
updated-dependencies:
- dependency-name: SteamKit2
  dependency-version: 3.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

DepotDownloader/DepotDownloader.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net9.0</TargetFramework>
@@ -27,6 +27,6 @@
     </PackageReference>
     <PackageReference Include="protobuf-net" Version="3.2.52" />
     <PackageReference Include="QRCoder" Version="1.6.0" />
-    <PackageReference Include="SteamKit2" Version="3.2.0" />
+    <PackageReference Include="SteamKit2" Version="3.3.0" />
   </ItemGroup>
 </Project>