Build.yaml (build tutorials for docker) action workflow has ~15 deprecation warnings #1068

Actual Behavior

Looking at any run of the Build Actions workflow you see ~ 15 warnings indicating we're using old out of support github actions, and/or github features. Examples are old checkout actions, and also using save state instead of .env files (which we already use in this repo today under /.github.

We should PR a fix to bring these to 0, and take a pass for any other old unsupported actions or stacks in use. This will also help stability and security of the supply chain.

Steps to Reproduce the Problem

Open any build workflow here and look at warnings
build action workflow