Run import automatically from time to time

[Markkop]

I need to manually run npm run import to trigger the data fetching every time.
Would be nice to have this on a CRON job so we don't need to rely on a person to update the Wakfu Version that the bot is consuming.
Since the bot's database is actually just a big JSON, I think we will need to make the auto import script to commit the changes on github.
If you want to give it a try, fork this repo. Let me know if you need help