Propagate miniforge Docker changes

[jashapiro]

Closes #743

This PR propagates changes from #744 to all Dockerfiles where conda is installed separately through miniforge, and to the docs with miniforge installation instructions for Docker. I had checked that #744 was successful by running the Run cell-type-ewings analysis module which is not yet complete, but is successfully running in the provided docker container.

I also temporarily removed the trigger for doublet-detection to run on workflow changes, just because at the moment that would run using the old docker image. Once this PR is in and the new docker image has been pushed to ECR, this change can be reverted.

[sjspielman]

LGTM, and looks like bots agree!

I did wonder if you also wanted to add the "!analyses/<module name>/<Docker & .dockerignore>" lines to the hello-* module run workflow files? The only other module is metacells which isn't using Docker yet.

[sjspielman]

I had actually added this line in at one point, see here for some context: #676

If you want to keep this line deleted for now and come back to this later, I'm fine with that!

[jashapiro]

Yes, I know why it is there, but it would make this PR never pass, as it would keep trying to use the current docker image, not the one defined by the changes to the Dockerfile.

[sjspielman]

Right, totally understand that, sorry if I wasn't clear! - I'm only saying if you want to wholesale delete, rather than comment out, that would be ok too.

[jashapiro]

I did wonder if you also wanted to add the "!analyses/<module name>/<Docker & .dockerignore>" lines to the hello-* module run workflow files? The only other module is metacells which isn't using Docker yet.

I thought about it, but those modules don't currently actually use the Docker images, so I wasn't as worried about it, so I decided to keep the changes more limited. But I can see it going either way, really.

[jaclyn-taroni]

My one comment is let's not forget to undo the thing that is commented out.

[jaclyn-taroni]

I think you probably want to track reverting this in an issue.

[jashapiro]

Added this as part of #676, if that works?

[jaclyn-taroni]

Sorry, intended to approve!