[ci] Create pre-release workflow

[titusfortner]

Description

This CI job can only be run manually; has a text input for version number and a checkbox for whether it uses Beta channel (beta on the "Early Stable Release" day has always been the same build number as the Stable Release several days later).

Running this on current code with the current Beta CDP (122)
looks like this: https://github.com/titusfortner/selenium/actions/runs/7661130480/job/20880319510
and results in this:
titusfortner#58

Motivation and Context

The previous release process didn't handle the Rust version -> SM build -> prep process correctly.
There's no good way to do that with a Rake task, so I created this github workflow to do it.

This is also nice because you can kick it off and it will automatically run the tests.
While the tests are running:

1. Verify the files all look correct
2. Pull the PR (gh pr checkout 12345), make the updates to the changelogs and push them back to the pr and merge it

Then all that is left is to run: ./go all:release and it should finish doing everything

[titusfortner]

I'm doing a few things wrong with this one, it'll be better once #13516 is merged.

[titusfortner]

Ok, this has been updated to use v4 actions, and makes sure inputs are strings not booleans, because booleans confuse bash.

I re-ran it on my fork:
https://github.com/titusfortner/selenium/actions/runs/7673663697/job/20917198122

this is the PR:
titusfortner#58

I'm going to merge it once tests pass; let me know if there are any concerns or things I can change.