Automated updating

[rkalis]

This repo stores the scripts to generate label data, which can be uploaded to AWS (or similar) using the yarn upload script. Right now the "process" is that I run that locally every now and then.

It would be better if there is a cronjob to do that.

We should have it run every day for yarn update:all && yarn upload spenders tokens, and perhaps another one that runs every hour to update yarn update:spenders:risk-factors && yarn upload scamsniffer to make sure our scamsniffer data is even fresher.