`RecurringMessage::getMessage()` was removed in favor of `getMessages()`

[Chris53897]

Error: Call to an undefined method Symfony\Component\Scheduler\RecurringMessage::getMessage().

This class has only getMessages()
https://github.com/symfony/symfony/blob/6.4/src/Symfony/Component/Scheduler/RecurringMessage.php

I did not take a closer look yet.

[kbond]

There was a BC break here from 6.3-6.4: symfony/symfony#51542

I'm going to have to rethink this 🤔

[kbond]

I believe this was fixed in #65