Changes to Get devrank leaderboard with enriched user data

added the required property users/items/allOf[subschema #2]/professional/experience/items/startDateConfidence to the response with the 200 status

added the required property users/items/allOf[subschema #2]/professional/hiring to the response with the 200 status

added the required property users/items/allOf[subschema #2]/professional/openToWork to the response with the 200 status

added the optional property users/items/allOf[subschema #2]/aggregates to the response with the 200 status

added the optional property users/items/allOf[subschema #2]/professional to the response with the 200 status

endpoint added