Fix/connection on queue work

[LucasOtaviani]

Hello, @jleonardolemos! I’ve opened this pull request to address an issue that occurs when using Pigeon with a queue worker.

The Problem

In PigeonServiceProvider, the manager is registered as a singleton:

$this->app->singleton('pigeon', fn($app) => new PigeonManager($app));

Since the queue worker keeps the singleton instance alive for the entire lifetime of the command, the underlying connection may eventually be lost. 😞

Proposed Solution

I reused the missedHeartBeat method to handle AMQPConnectionClosedException, instead of only AMQPHeartbeatMissedException, since the latter extends the same closed connection context.

Another option would be to catch RuntimeException, as it covers both exceptions mentioned above. However, I’d prefer to validate this approach incrementally before broadening the scope too much.

P.S.: I don’t think we should handle TimeoutException or IOException at this point.

What are your thoughts?