Use log package from authd

[adombeck]

For consistency and because it's more convenient (especially the Debugf, Infof etc. methods are more convenient to use than slog.Debug(fmt.Sprintf(...))).

UDENG-5773
UDENG-4523

TODO

• Use log package from main instead of UDENG-5773-allow-importing-log-package once Allow importing log package authd#727 has been merged

[adombeck]

The failure of the code sanity job is tracked in https://warthogs.atlassian.net/browse/UDENG-5774

[didrocks]

I didn’t spot anything wrong. Nice work! I agree this is easier than slog.Foo(fmt.Sprintf())

[3v1n0]

Great thing... Indeed it's a more consistent move.

Wondering if even this package could be somewhat shared in a private package... As I don't feel it would be fine in authd.log (unless we want to be committed to it...)

[adombeck]

Wondering if even this package could be somewhat shared in a private package...

Yes, @didrocks and I briefly discussed that a few days ago, with the result that we both think it could make sense to move this to a separate repo but we don't want to do that right now.