update docs to suggest using Docker in production

[pdurbin]

What this PR does / why we need it:

Now that we have images tagged with version numbers, I think we're ready to suggest that people can try using Docker in production

Here's a good entry point for previewing the changes: https://dataverse-guide--11862.org.readthedocs.build/en/11862/installation/prep.html#choose-your-own-installation-adventure

Which issue(s) this PR closes:

None.

Special notes for your reviewer:

I removed old notes about IQSS not supporting these Docker images at all. There were added years ago by @poikilotherm when he was inventing all this stuff. These days, we use the Docker images in development and we at least talk about using them in production. I think we can give our usual "best effort" attempt at answering questions about them.

See also discussion on Zulip about this PR starting here: https://dataverse.zulipchat.com/#narrow/channel/375812-containers/topic/containers.20for.20production/near/542761006

This issue is related but I think we can work on it in a future PR:

• Document competing containerization efforts and how to choose #10522

Is there a release notes update needed for this change?:

I don't think so. I'm ok with a soft launch. No need to shout from the mountain tops that we removed some of the "not for production" language.

[coveralls]

Changes unknown
when pulling 1ed3fd8 on prod_docker
into ** on develop**.

[github-actions]

📦 Pushed preview images as

ghcr.io/gdcc/dataverse:prod-docker

ghcr.io/gdcc/configbaker:prod-docker

🚢 See on GHCR. Use by referencing with full name as printed above, mind the registry name.

[pdurbin]

During today's Containerization working group meeting I talked through this PR with @poikilotherm @beepsoft and @akio-sone. The recording is here: https://harvard.zoom.us/rec/share/qw5BTHsX132xEYBue7rKrPx6n7_3oL1J5AoOz40y9STlp_z_cuHM2qbTcOtWuaDG.34EEw9prY2HxDp9c

In short, I'm removing the scary language about never using these containers in production. @johannes-darms is using them, and others.

@poikilotherm rightly pointed out that not everything can be configured via MPConfig, such as storage, but we have an issue tracking this:

• Migrate storage configuration to MPCONFIG (milestone D) #9998

There will always be something to improve. We have tagged versions now, at least, so people can pin their installations to a specific version. I think it's time.

I'm moving this to "ready for review". I'm happy to make changes, of course!