fix: log info when UnrecoverableExceptionInterface

[alexndlm]

If the application throws UnrecoverableExceptionInterface, it is not an error.

[mnapoli]

Why? I consider this exception to be a marker of an error that wouldn't make sense to retry, no? Are there docs about what this exception means exactly (or in which case it is used)?

[alexndlm]

Yes, exactly. But the main goal for this exception is to not retry intentionaly. Related docs - https://symfony.com/doc/current/messenger.html#avoiding-retrying

[mnapoli]

I found this: https://github.com/symfony/messenger/blob/58a7efa3bebadbe4cdd8f7577c5856f0e3ea3978/EventListener/SendFailedMessageForRetryListener.php#L59-L80

In the native Messenger implementation, in case of a non-retryable exception (UnrecoverableExceptionInterface), then the error is logged as "critical" (not info as suggested in this PR).

I don't see a reason to switch the log level here, am I missing anything?

[alexndlm]

Nice point. No arguments.