Change head node flavor to medium
Since the head node does not need that much resource, change it to medium.
Gitlab will be upgraded from 17.7.7 to 17.11.7 Thursday evening (20260402). See the Gitlab 17.11.7 Release Notes for a list of what's new. Expect services to be down starting 5:45PM CT (1745).
Since the head node does not need that much resource, change it to medium.