Rollbar::Logger not working well with the newest logger gem

[randypuro]

Rollbar::Logger inherits from ::Logger, but doesn't call it's constructor.

logger gem v1.6.0 (which, for instance, comes with ruby 3.3.1) initializes other parameters in that constructor which are used in other methods (like the level accessor).

It means accessing the level in Rollbar::Logger raises an exception. Rollbar::Logger should probably also use the level accessor (instead of the instance variable) to be more resilient to these kinds of improvements/changes to the base ::Logger.

And while I understand the point of raising exceptions on formatter, etc; it means the Logger doesn't play well with the newer Rails logger broadcast functionality which tries to copy formatters down to any new broadcast children.