Returns basic information about the service.

Example response

{
  "name": "casesvc",
  "version": "10.42.0",
  "origin": "git@github.com:ONSdigital/rm-case-service.git",
  "commit": "06752afbf05f27c923ddf42d3cd2ec9eeafd3362",
  "branch": "main",
  "built": "2020-06-15T08:38:34Z"
}