How to automatically add SF Contacts to a Pardot dynamic list based on Contact custom field criteria?

I have a custom field on the Contact called "Events Attended." The field came standard with our Event Management app, but I believe it's a counter that goes up by 1 every time an Attendee record is related to the Contact (a process that also happens automatically).

I have a dynamic list in Pardot called "All Event Attendees All Time" that is automated to sync with a Salesforce Campaign called "All Event Attendees All Time"

Every week, before our newsletter goes out, I run a Report to pull all Contacts with Events Attended > 0, and I click to add them to the Salesforce Campaign. But I'd like to automate that bit too.

Is this a Flow? I took the module but I don't fully get it.