fix: bump node image for microfrontends for mozjpeg-bin

[pshiu]

Description

Our microfrontends depend on mozjpeg-bin, which requires zlib 1.2.9 as of mozjpeg-bin@7.1.1.

This PR bumps the OS image used by the microfrontends from Debian release 9 (stretch or oldoldstable) to 11 (bullseye or stable) to upgrade zlib to a better version.

The bump is from:

• standard node:12 image
  • defaults to stretch
  • packed with zlib 1.2.8

To:

• node:12-bullseye image
  • packed with zlib 1.2.11

This should fix errors like "Error: Cannot find module 'mozjpeg'".

Research

• Other options: Here are all the Docker node image options: Docker Hub
• What we use in prod: We use Ubuntu bionic (18.04 LTS) right now in GoCD to do our builds for staging & production: internal-dockerfiles (sorry non-edX folks, this is a private repo).
• What zlib prod uses: Ubuntu bionic (18.04 LTS) is packed with zlib 1.2.11.
• Why can't we use bionic?: Node on Docker Hub doesn't seem to offer Ubuntu Node images.
• On choice of image: We could technically use the buster Debian image since it also is packed with zlib 1.2.11, but the thought is to upgrade further if possible.
• On disadvantage of this PR: This does pin the image to bullseye, so if the default changes in the future that will not be picked up.
• On testing: I have been using devstack with node:12-bullseye with no problems for the past two days.
• On usage: To use this change:
  • git pull this change into your devstack folder
  • Clear out any node_modules folders in your frontend-app-* Git repositories
  • git pull in your frontend-app-* Git repositories
  • Run make dev.up.frontend-app-gradebook+frontend-app-payment+frontend-app-publisher+frontend-app-learning in your devstack folder to recreate your containers.

---

I've completed each of the following or determined they are not applicable:

• [ ] Made a plan to communicate any major developer interface changes (or N/A)
  • N/A

[schenedx]

👍

[adzuci]

This seems reasonable to me, we may also want to make sure sandboxes and presumably anywhere else this is needed are in sync with devstack.

Also we may want to add this to a release note of some kind, but I'm not positive about that.

[pshiu]

Thanks, everyone!