v3.38.0

LinearSolve v3.38.0

Diff since v3.37.0

Merged pull requests:

• Fix allocations in 32Mixed precision methods by pre-allocating temporaries (#758) (@ChrisRackauckas-Claude)
• Simplify mixed precision: compute types on demand instead of caching (#759) (@ChrisRackauckas-Claude)
• fix sparspak solves in multithreaded loop (#760) (@j-fu)
• Improve usecuda function to verify CUDA availability (#762) (@hexaeder)

Closed issues:

• Don't use cuda just because cuda is loaded (#761)