Backport of build: ensure we pull through the hashicorp proxy instead of going directly to the docker hub into release/1.16.x#19485

hc-github-team-consul-core merged 1 commit intorelease/1.16.xhashicorp/consul:release/1.16.xfrom

backport/rboyer/fix-docker-build-rate-limit/carefully-moving-basiliskhashicorp/consul:backport/rboyer/fix-docker-build-rate-limit/carefully-moving-basiliskCopy head branch name to clipboard