chore: flatten ifs for fkirc/skip-duplicate-actions

[nschonni]

Why:

Each of the sub-steps except on that only applies when the previous steps fails are skipped if the "should skip" job evaluates to true. It was figured out with the js-lint job that this "Skipped" jobs still allow merging of the "Required" jobs.

What's being changed:

Hoist the if condition for the test jobs to the root, and remove the duplicate checks ifs on the sub-steps

Check off the following:

• All of the tests are passing.
• I have reviewed my changes in staging.
• For content changes, I have reviewed the localization checklist
• For content changes, I have reviewed the Content style guide for GitHub Docs.

[nschonni]

@JamesMGreene I copied over what we learned in #862

[heiskr]

🙇🏼 Nice improvement.

[github-actions]

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