Release Automation Improvements

[SydneyhSmith]

We should clean up/optimize the release automation for the VSCode extension in order to reduce the time dedicated to each release so that we can optimize our time for improving the extension and release at a more frequent cadence.

cc: @rjmholt @andschwa

[rjmholt]

We should slurp up any relevant parts of #2286 into this issue and close that one

[andyleejordan]

I'm actively working on this now as I want to be able to get releases out without pulling my own hair out.

[andyleejordan]

@rjmholt I have like 3 remaining bullet points to do, I'll get those in before merging the PR.

[andyleejordan]

Uhh wtf my bulleted list of tasks are gone. Well, I made a new issue for the remaining piece, plus there's to delete the 'vses' scripts after we're happy with the pipeline.