Replace sv_pipeline_base_docker with sv_pipeline_docker

[VJalili]

A follow-up from #633

Since both sv_pipeline_base_docker and sv_pipeline_docker are references to the same docker image, this PR implements the following changes to consolidate them:

• If a workflow has both sv_pipeline_docker and sv_pipeline_base_docker, remove sv_pipeline_base_docker and replaces all runtime references with sv_pipeline_docker.
• If a workflow does not have sv_pipeline_docker, then rename sv_pipeline_base_docker to sv_pipeline_docker.
• Update all the templates according to the above changes.

A few other docker image variables also use the same image as sv_pipeline_docker. I will update these variables similarly in follow-up PRs.

[mwalker174]

Thank you! This has been a long time coming. I hope you didn't have to do it all by hand :)

[VJalili]

Thank you, @mwalker174!

I hope you didn't have to do it all by hand :)

I did! :) I think that was the only option to make sure the changes were correctly applied.