As an admin, I want to check effective/parsed configuration via debug logs, so that I can (re)validate my configuration is being correctly applied by Magnolia, before trying to log in and see.

This would be useful when working with YAML config, especially on 6.2 setups with the YAML bridge config. Finding the right config can be an error prone exercise, due to indentation mishaps, possibly amplified by config refactorings we did in 3.0.0, e.g. moving authorization-generators, which admins also have to move, with a chance of accidentally breaking indentation or some other syntax.

Note: we may do this before or after MGNLSSO-188, in which case re-printing the effective configuration should be done upon every reload.