fix: Fix SCIM_User Collection - BED-8637

[StranDutton]

Fix SCIM user collection by iterating paginated results correctly

Previous behavior

• Running a collection failed to collect scim_users with the error:
  'PageData' object is not a mapping
• No folder created in the raw output for the scim_users resource

Post-fix confirmation

• No error produced during collection
• Collection output contains an entry for scim_users
• This implements the same pattern found in the rest of the file where a paginated resource iterates per item in the page

Testing notes can be found in the ticket --> BED-8637

/resolves BED-8637