feat: add configurable logging

[tharropoulos]

Change Summary

Expand on #11 to include a configurable log level parameter when configuring the gem, instead of removing loggin outright. Default log level to warn.

closes #2

PR Checklist

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[jasonbosco]

This is now available in v1.0.0.rc3

[cirdes]

@tharropoulos @jasonbosco

It's odd for a gem to change the Rails.logger.level or someone have to use a gem to config the Rails.logger.level of thier application.

Logger.level is something that should be configured by the user on his own application not inside a gem. This PR leads to a confusing pattners as @stephannv pointed out on his #11 (comment)

[jasonbosco]

@cirdes At the risk of sounding like an LLM, you're absolutely right! #14 now fixes this.