Thank for your help. The Suspicious Inline Script is from WP Rocket plugin, a very popular plugin:
class RocketLazyLoadScripts{constructor(){this.v="1.2.3",this.triggerEvents=["keydown","mousedown","mousemove","touchmove...
We have Sucuri premium monitoring the site and I runned another scan and it keeps showing no issues, even on server side (print screen in attach). Therefore it seems a false positive to me.