Split Falco alerts for different priorities

[aarnq]

Proposed feature

Falco rules have different priorities attached to them, but we only alert on P2. We should change this to make it easier for platform admins to handle alerts, as then a P1 Falco alert would be something critical, and P2 Falco alert something severe.

And make it a better experience for application developers, as they wouldn't think every alert would be an active intrusion.

Proposed alternatives

Check if it is possible to map the labels from the Falco alerts to the priorities used by Alertmanager.

Additional context

No response

Definition of done

• Falco alerts have different priorities
• This new feature is covered by public documentation