Hi AndreeLl,
I would strongly advice against using cyclical action every minute, even if executed actions won't affect workflow elements directly (ie. creating historical versions).
On each recurrent action execution, new entries would be added to WFActionExecutions table (action logs) and AutomationSessionExecutions table (automation logs), making database size grow quickly and slowing down the system.
Not mentioning the fact, that it would burden the Workflow Service, as it'd have constant work to do (alongside other tasks).
Because the discussed topic is syncing users, I'd suggest configuring such automation to run, for example, every 3 hours, which is the same as default incremental synchronization of BPS Users List.
Sincerely