Revert "Upgrade base cadvisor image"
Created by: jhchabran
Reverts sourcegraph/sourcegraph#35957
The base image referenced in that commit is an arm64. https://sourcegraph.slack.com/archives/CMBA8F926/p1653413837512669?thread_ts=1653411739.808069&cid=CMBA8F926
Test Plan: this should get CI back to green.