Backport of build: ensure we pull through the hashicorp proxy instead of going directly to the docker hub into release/1.17.x (#19486)

backport of commit 5ab1e9888e

Co-authored-by: R.B. Boyer <rb@hashicorp.com>

build-support/docker/Consul-Dev-Multiarch.dockerfile

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: BUSL-1.1
 
 ARG CONSUL_IMAGE_VERSION=latest
-FROM hashicorp/consul:${CONSUL_IMAGE_VERSION}
+FROM docker.mirror.hashicorp.services/hashicorp/consul:${CONSUL_IMAGE_VERSION}
 RUN apk update && apk add iptables
 ARG TARGETARCH
 COPY linux_${TARGETARCH}/consul /bin/consul

build-support/docker/Consul-Dev.dockerfile

@@ -2,6 +2,6 @@
 # SPDX-License-Identifier: BUSL-1.1
 
 ARG CONSUL_IMAGE_VERSION=latest
-FROM hashicorp/consul:${CONSUL_IMAGE_VERSION}
+FROM docker.mirror.hashicorp.services/hashicorp/consul:${CONSUL_IMAGE_VERSION}
 RUN apk update && apk add iptables
 COPY consul /bin/consul