Build/UpdateAssemblyInfo.ps1: Fix paths for different working dirs
Build/UpdateAssemblyInfo.ps1: Fix paths for different working dirs

BrandonLWhite/UnitsNet,Tirael/UnitsNet,BoGrevyDynatest/UnitsNet,anjdreas/UnitsNet,BrandonLWhite/UnitsNet,neutmute/UnitsNet,anjdreas/UnitsNet,maherkassim/UnitsNet,maherkassim/UnitsNet