chore(live-update): prevent requests if server responds with http status 429

[robingenz]

Problem:

A customer had a bug in their app that caused 100s of requests to be sent to Capawesome Cloud's API from every single device. Capawesome Cloud's API already has rate limiting mechanisms in place, but this does not prevent further requests.

Solution:

The plugin should stop sending requests to the server for a certain time (to be defined) if the server responds with an http status 429 Too Many Requests.