feat: release structured logging as the default

[mkcp]

Is your feature request related to a problem? Please describe.

To fully release logger and structured logging as the default, we need to swap Zarf's default logging from message to logger.

Describe the behavior you'd like

This is a breaking change, so we should also provide a feature flag to reenable message. When using this flag, we should provide a deprecated warning as well as a clear timeline when the old logging will be removed (likely two releases).

Describe alternatives you've considered

We considered deleting all of message but once we found a good path to feature flagging, backwards compatibility is much healthier for our userbase.

Additional context

Blocked by everything in #3210

Pain Points

We should expect some concerns and feedback to occur only after we've flipped the switch on release. Let's make sure we have time and extra awareness on feedback channels so we can discuss workarounds and followup improvements.