Post pension calculation

curl --request POST \
  --url https://api.sandbox.flowpayroll.ai/v1/pension/pension-calculation \
  --header 'Content-Type: application/json' \
  --data '
{
  "employeeId": "<string>",
  "frequency": "<string>",
  "year": 123,
  "period": 123,
  "payrollConfigId": "<string>",
  "employeeAmount": 123,
  "employerAmount": 123,
  "periodStart": "2023-12-25",
  "periodEnd": "2023-12-25",
  "nationalInsuranceNumber": "<string>",
  "externalReferenceId": "<string>",
  "pensionProviderId": "<string>"
}
'

{
  "message": {
    "text": "<string>",
    "token": "<string>",
    "tokenArguments": [
      {
        "name": "<string>",
        "value": "<string>"
      }
    ]
  },
  "content": {
    "data": {
      "employeeId": "<string>",
      "frequency": "<string>",
      "year": 123,
      "period": 123,
      "payrollConfigId": "<string>",
      "organisationId": "<string>",
      "employeeAmount": 123,
      "employerAmount": 123,
      "periodStart": "2023-12-25",
      "periodEnd": "2023-12-25",
      "nationalInsuranceNumber": "<string>",
      "externalReferenceId": "<string>",
      "pensionProviderId": "<string>"
    },
    "metadata": {
      "dateFormat": "<string>",
      "dateTimeFormat": "<string>"
    }
  }
}