Defaults for valkey

[rtuck99]

The default save interval for valkey is:

# Unless specified otherwise, by default the server will save the DB:
#   * After 3600 seconds (an hour) if at least 1 change was performed
#   * After 300 seconds (5 minutes) if at least 100 changes were performed
#   * After 60 seconds if at least 10000 changes were performed

as we probably aren't going to be modifying it that often, we could probably increase the save frequency to reduce the chance that an interruption loses the state.