Post add credentials

curl --request POST \
  --url https://gateway.cyrexa.com/customer/1.0.0/addCredential \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'tenantId: <tenantid>' \
  --data '{
  "customerId": "<string>",
  "credentials": [
    {
      "credentialType": "email",
      "value": "<string>",
      "code": "<string>",
      "communicationChannel": {
        "name": "<string>",
        "type": "phone",
        "addressUrl": "<string>"
      }
    }
  ]
}'

{
  "id": "<string>",
  "message": "<string>",
  "code": 123
}