Fix content-type as application/json for system-schema api
Issue Reference: osdu/platform/pre-shipping#521
- As discussed in the above issue received a response with 'application/json' Content-Type, but it is not declared in the schema for system-schema api.
- In this MR we defined the content-type as 'application/json' in system-schema api for the respective api response.
Edited by VidyaDharani Lokam