Link session to a sender

curl --request POST \
  --url https://api.zavu.dev/v1/whatsapp-alt/sessions/{sessionId}/link \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "senderId": "sender_12345"
}
'

{
  "session": {
    "id": "jd7x2k3m4n5p6q7r8s9t0",
    "egress": {
      "nodeId": "<string>",
      "country": "cl"
    },
    "createdAt": "2023-11-07T05:31:56Z",
    "displayName": "<string>",
    "qrCode": "<string>",
    "phoneNumber": "+56912345678",
    "pushName": "<string>",
    "senderId": "<string>",
    "lastError": "<string>",
    "lastConnectedAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}