ctsm5.3.049: Preferentially use Podman for ctsm-docs container

[samsrabin]

Description of changes

Updates doc-builder to a version that prefers to use podman instead of docker. Also updates documentation to instruct docs-writers to use Podman instead of Docker, along with some other improvements.

• Try brew-then-Desktop method for Mac
• Automatically podman machine start if Cannot connect to Podman in stderr
• Get multi-arch support working
• Check https://www.redhat.com/en/blog/run-containers-mac-podman for tips
• Merge in latest master tag after ctsm5.3.048: Automatically publish docs to this repo #3146 comes in.
• Update all docs links to point to (case-sensitive!) https://escomp.github.io/CTSM
• Add Windows instructions for Podman

Specific notes

Contributors other than yourself, if any: None

CTSM Issues Fixed: None

Are answers expected to change (and if so in what way)? No

Any User Interface Changes (namelist or namelist defaults changes)? No

Does this create a need to change or add documentation? Did you do so? Yes; yes

Testing performed, if any: Documentation builds as expected.

[ekluzek]

@samsrabin and I went over this, and the changes make sense. Some references to docker are changed to container or podman. The github runners need to use the docker Linux command line interface which is already valid under the license, since it's just using DockerEngine which is open-source under Apache 2.0. So the use of dockerfile is acceptable also for example.

I searched for docker in this version, and thought the uses of it made sense, since they are mostly in the .github workflow section.

I did notice that LILAC apparently uses docker, so there might be changes to the instructions for LILAC that we need to make. But, I'll open an issue for that.

This is a nice update that helps us to feel confident that we aren't inappropriately using something that we need to buy a license for.