[scudo] Fix the format of getStats() (#121608) This is a quick fix for b71c44b9be17dc6295eb733d685b38e797f3c846 "last released" was removed by accident in primary64.h and the update of "NumReleasesAttempted" was missing. GitOrigin-RevId: a8d2aeec8732c8d158f5b194a5191c0805bcd961