Calendar reminders with infinite recurrence

[tcitworld]

Steps to reproduce:

• Create an event with recurrence options and no end condition. Add any kind of reminders to it. Save it.
• Run the process reminder CLI task dav:send-event-reminders

In EventIterator.php line 299:
                                                      
  Recurring events are only allowed to generate 3500  
                                                      

dav:send-event-reminders

We should catch MaxInstancesExceededException and ignore so that it doesn't block the rest of the processing.