decisions fetching from Crowdsec is always with param startup=true

[he2ss]

Hi again o/

In this line we can see the decisions fetching with the param startup=true which means to always retrieve all the active decisions. To improve the decisions fetching, as you're using a stream fetching mechanism, you can use the first request with the param startup=true (on the plugin start) to get all active decisions, then avoid using this param to get only the new decisions.