[gpu] ml-on-gcp repo (gpu metrics dependency) to be archived

[bradmiro]

The ml-on-gcp repo is going to be archived soon due to inactivity. This repo is still being used for GPU metrics here so wanted to flag this. This won't be breaking but the repo won't be able to receive further updates.

cc @minherz

[cjac]

I had a problem relating to this and fixed it in #1275

Should we move to a more modern approach? I tried using the ops agent instead and couldn't get it working. For now the archived code seems to be working fine. If we need to change it in the future, we can fork, I guess.