Automatically retry `server_error`

[rikhuijzer]

This currently fails immediately:

Error:
{
  "error": {
    "message": "The server had an error while processing your request. Sorry about that!",
    "type": "server_error",
    "param": null,
    "code": null
  }
}

Given that this happens quite frequently in my experience and that it is solved by doing another request, ata should probably try again after a second