deploy new format config for blocklock/randomness agents

[CluEleSsUK]

After the cluster upgrade, they got restarted with the latest format for committee config, breaking some things :(
Either create a 'legacy config' or update the infra repo to the new config format

[CluEleSsUK]

I've pinned blocklock and randomness to a specific commit (and also the one inf randomness.yaml). This will need changed once we've fixed the configs