erp5_hal_json_style: set correct caching policy for hateoas

6 jobs for master in 0 seconds (queued for 1 second)
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-Master

01:09:50

passed ERP5.PerformanceTest-Master

00:25:52

failed ERP5.UnitTest-Master

01:44:51

failed ERP5.UnitTest-Master.Medusa

01:41:48

passed SlapOS.Eggs.UnitTest-Master.Python2

00:16:48

passed SlapOS.Eggs.UnitTest-Master.Python3

00:13:59