Switch to an vendor neutral logger interface or stdlib slog logging

[jkroepke]

hcsshim currently uses logrus to implement its own logging interface. This approach is counterintuitive when hcsshim is used as a library.

As a library consumer, I would prefer the ability to inject my own logging system. In my case, I am using log/slog from the standard library.

Adopting a stdlib logger as the standard might be a better idea, as other loggers can provide adapters for compatibility. For example, slog-zap demonstrates how such adapters can be implemented.