Add 3 hours as a time (#100)

src/commands/ttl-cache.yml

@@ -18,7 +18,7 @@ parameters:
  be a factor into how often to bust. We don't want to do it too often or too few times.
  type: enum
  default: "1-day"
- enum: ["6-hours", "12-hours", "1-day", "1-week", "1-month", "3-month"]
+ enum: ["3-hours", "6-hours", "12-hours", "1-day", "1-week", "1-month", "3-month"]
  include-branch-in-cache:
  description: |
  If set this will include the branch will be included in the cache. This means that caches
@@ -63,6 +63,10 @@ steps:
  time_period_secs=""
 
  case "<< parameters.ttl-period >>" in
+ 3-hours)
+ time_period_secs=10800
+ ;;
+
  6-hours)
  time_period_secs=21600
  ;;