Post v2oauth refresh

curl --request POST \
  --url https://api.cal.com/v2/oauth/{clientId}/refresh \
  --header 'Content-Type: application/json' \
  --header 'x-cal-secret-key: <x-cal-secret-key>' \
  --data '{
  "refreshToken": "<string>"
}'

{
  "status": "success",
  "data": {
    "accessToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9",
    "refreshToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9",
    "accessTokenExpiresAt": 123
  }
}