Build broken on MSVC due to yasm cmake version...

[icculus]

Some basic bitrot killing us here...

https://github.com/libsdl-org/SDL_mixer/actions/runs/28721991080/job/85172982147

CMake Error at CMakeLists.txt:2 (CMAKE_MINIMUM_REQUIRED):
  Compatibility with CMake < 3.5 has been removed from CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.

  Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.

[madebr]

I disabled yasm on ci in #879 so we have test coverage for MSVC.
(I left it enabled for SDL2_mixer for the mean time)

I created a few yasm patches to improve the yasm-on-CMake experience, with the faint hope that a unit test will break.
But instead, all tests succeed and I cannot reproduce the error on my Windows box.