The files you mention have been the same in every release since late 2017. So it seems unlikely that all the various virus scan tools in the last 4 years have missed something.
I suspect that whatever virus scan tool you are using is using heuristics to decide if something is a virus. Since a number of viruses utilize open source software (like these libs) as part of their operation, it seems possible that the scanner has decided that these must be part of a virus. Even though they are almost certainly innocuous in themselves…