Handle "Continue wait" as part of timeout

[mzealey]

https://cube.dev/docs/product/apis-integrations/rest-api#continue-wait - if longer than the default 10s then the 'Continue wait' error is sent back to the client. It would be good to allow the client to specify a longer timeout (eg 60) and get it auto-retrying there.

[mharrisb1]

@mzealey good call out. I'm a little swamped with day job stuff at the moment and we don't rely too heavily on this feature so it will be a bit before I can tackle this. Feel free to submit a PR if you think it would be easy to do