Make sure pgo dll is available during training

[#82213900]
Prevent code regeneration of profile-use case

This was causing issues with MSVC thinking the project had changed between
profile training and profile usage.
Merge branch '82213900-InvestigateLTO' of https://github.com/NREL/EnergyPlus into 82213900-InvestigateLTO
Refine training further
Don't prevent tests from running in parallel in windows

For PGO specifically [#82213900]