Changes to Get dataset leaderboard

for the query request parameter base_model, default value true was removed

added subschema #1 subschema #2 to the items/author response property oneOf list for the response status 200

added subschema #1 subschema #2 to the items/source/author response property oneOf list for the response status 200

for the query request parameter base_model, the type was generalized from no type to string

removed subschema #1 subschema #2 from the items/author response property anyOf list for the response status 200

removed subschema #1 subschema #2 from the items/source/author response property anyOf list for the response status 200

added the new admin enum value to the items/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new admin enum value to the items/source/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new contributor enum value to the items/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new contributor enum value to the items/source/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new no_access enum value to the items/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new no_access enum value to the items/source/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new read enum value to the items/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new read enum value to the items/source/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new write enum value to the items/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

added the new write enum value to the items/source/author/anyOf[subschema #2]/primaryOrg/userRole response property for the response status 200

removed subschema #1 subschema #2 from the items/author/anyOf[subschema #2]/primaryOrg/userRole response property anyOf list for the response status 200

removed subschema #1 subschema #2 from the items/source/author/anyOf[subschema #2]/primaryOrg/userRole response property anyOf list for the response status 200