Add an option to disallow the usage of default logger

[AlekSi]

So, for example, slog.Info would be forbidden, but l := slog.New(…); l.Info would be allowed.

[tmzane]

Good idea!

I think disallowing global loggers in general might be a useful option, so we could implement it as something like no-global: all (forbid global loggers) and no-global: default (forbid the default logger). WDYT?

[AlekSi]

Sounds great!

[tmzane]

@AlekSi Implemented as discussed. Will probably land in the next golangci-lint release 👀