GHSA-mw24-f3xh-j3qv: Chall-Manager's invalid NetworkPolicy enables a malicious actor to pivot into another namespace

Due to a mis-written NetworkPolicy, a malicious actor can pivot from an instance to any Pod out of the origin namespace. This breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement. In the specific case of sdk/kubernetes.Kompose it does not isolate the instances.