k8sclusterreceiver pod and container metadata.yaml break CI

k8sclusterreceiver pod and container metadata.yaml break CI: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). @dmitryax @atoulme heads up that CI is broken on main after 23783 got merged, because for the changes in this PR (which weren't included in the branch from 23783) the…