Submit password credentials to a login flow

curl --request POST \
  --url https://api-gw.verolabs.co/api/authen/self-service/login \
  --header 'Content-Type: application/json' \
  --data '
{
  "csrf_token": "<string>",
  "password_identifier": "jsmith@example.com",
  "password": "<string>"
}
'

{
  "session_token": "<string>",
  "session": {
    "id": "<string>",
    "active": true,
    "identity": {
      "id": "<string>",
      "traits": {}
    },
    "tokenized": "<string>"
  },
  "identity": {}
}