The following artifacts were uploaded using a version of actions/upload-artifact that is scheduled for deprecation: "mainnet-lighthouse-checkpointz.log", "mainnet-lodestar-checkpointz.log", "mainnet-nimbus-checkpointz.log", "mainnet-prysm-checkpointz.log", "mainnet-teku-checkpointz.log". Please update your workflow to use v4 of the artifact actions. Learn more: https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions/