create install inputs

curl --request POST \
  --url https://api.nuon.co/v1/installs/{install_id}/inputs \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "inputs": {}
}'

{
  "app_input_config_id": "<string>",
  "created_at": "<string>",
  "created_by_id": "<string>",
  "id": "<string>",
  "install_id": "<string>",
  "org_id": "<string>",
  "redacted_values": {},
  "updated_at": "<string>",
  "values": {}
}