test: verify_clean_boot enhancements

[TheRealFalcon]

Proposed Commit Message

test: verify_clean_boot enhancements

Additional Context

Test Steps

Merge type

• Squash merge using "Proposed Commit Message"
• Rebase and merge unique commits. Requires commit messages per-commit each referencing the pull request number (#<PR_NUM>)

[TheRealFalcon]

Is this a reasonable assumption now?

[blackboxsw]

Now that 0f77b3c landed moving us to oracular which is RC = 2 this should be reasonable and no need to check GITHUB_ACTION.

[blackboxsw]

Now that 0f77b3c landed moving us to oracular which is RC = 2 this should be reasonable and no need to check GITHUB_ACTION.

[holmanb]

        # Look at the commit history before making changes here.
        # Behavior on Jenkins, GH CI, and local runs must be considered
        # for all series.

XD

Yeah, fair enough.

[holmanb]

I think that we need to set CLOUD_INIT_OS_IMAGE=oracular so that we actually launch oracular
images.