tests: Manually define D3D11_FORMAT_SUPPORT2_UAV_TYPED_LOAD if needed.
Versions of mingw before 8.0.1 don't define D3D11_FORMAT_SUPPORT2_UAV_TYPED_LOAD, which is needed for the d3d11 tests. Notably, a lot of common Linux distros (like KDE Neon and Pop!_OS) use Ubuntu 22.04, which only publishes mingw 8.0.0.
cc @fcasas, who was also having this issue. I use KDE Neon (6.1) and he uses Pop!_OS. See https://launchpad.net/ubuntu/+source/mingw-w64