message: fix(express): upgrade Express Dockerfile
  Change attribution by: lfojacintho
  The latest version of BitGo-Express docker image uses an outdated node base image.
  This base image contains several vulnerabilities that were fixed in more recent versions.
  I'm upgrading the base image to the latest version, which doesn't contain any known vulnerability.
diff: # An elaborated scheme to build all the dependencies of all packages first in a cached layer
  # https://stackoverflow.com/a/63142468/134409
  # https://medium.com/@emilefugulin/building-a-sane-docker-image-for-typescript-lerna-and-prisma-2-76d8ff9926e4
  -FROM node:16-alpine@sha256:72a490e7ed8aed68e16b8dc8f37b5bcc35c5b5c56ee3256effcdee63e2546f93 AS filter-packages-json
  +FROM node:16-alpine@sha256:bf1e1c4761cd5e417b5ed60d5c599266270b728878089efcd1d63a8bd1dde446 AS filter-packages-json
  MAINTAINER Tyler Levine <tyler@bitgo.com>
  COPY package.json yarn.lock lerna.json ./
  @@ -12,7 +12,7 @@ COPY modules ./modules
  # delete all the non package.json files under `./modules/`
  RUN find modules \! -name "package.json" -mindepth 2 -maxdepth 2 -print | xargs rm -rf
  -FROM node:16-alpine@sha256:72a490e7ed8aed68e16b8dc8f37b5bcc35c5b5c56ee3256effcdee63e2546f93 AS builder
  +FROM node:16-alpine@sha256:bf1e1c4761cd5e417b5ed60d5c599266270b728878089efcd1d63a8bd1dde446 AS builder
  RUN apk add --no-cache git python3 make g++ libtool autoconf automake
  WORKDIR /tmp/bitgo
  COPY --from=filter-packages-json /tmp/bitgo .
  @@ -31,7 +31,7 @@ RUN \
  rm -r modules/*/src
  -FROM node:16-alpine@sha256:72a490e7ed8aed68e16b8dc8f37b5bcc35c5b5c56ee3256effcdee63e2546f93
  +FROM node:16-alpine@sha256:bf1e1c4761cd5e417b5ed60d5c599266270b728878089efcd1d63a8bd1dde446
  RUN apk add --no-cache tini
  # copy the root node_modules to the bitgo-express parent node_modules
  COPY --from=builder /tmp/bitgo/node_modules /var/node_modules/
  