RESTEasy Reactive: log exceptions

[FroMage]

Description

On #27526 I noticed that we have no option to log exceptions on the server, before we map them to an exception handler, which sometimes just turns them into a blank HTTP error. In the case of native executable debugging, this can be helpful.

We could log them under the ERROR level, or add a config option to log them.

Implementation ideas

No response

[quarkus-bot]

/cc @geoand, @stuartwdouglas

[geoand]

We probably want to log them as debug by default in order to not cause excessive logging (which can be a security issue).