std::char_traits is deprecated in clang 18 and removed in clang 19 #10378
Description
Some minor deprecation warnings after a system update on @nrel-bot-3. They are here: https://myoldmopar.github.io/EnergyPlusBuildResults/EnergyPlus-0c0cdaa269e7b5939c46b710f4dbdef68db8fdac-x86_64-MacOS-10.18-clang-15.0.0.html. There is a related issue that might be helpful here: jtv/libpqxx#738.