Investigate newer Steam endpoints

[Stealthii]

https://github.com/multiplay/lancache/commit/ca8915f9f18ac94114101c92c7d946bc812519f5 https://github.com/ti-mo/ansible-lanparty/commit/82cd9766a25f220ab1dc4ff42d3ef26dc42a7818 https://github.com/Lochnair/lancache/commit/1bfd485ca3d163cf68c4238252eebb4cf6ca527f