lint: fix untyped-defs on /tests/unittest/cmd

[wideawakening]

related to #5445

effort has been timeboxed, as part of the onboarding.

• tests.unittests.cmd.devel.test_hotplug_hook
• tests.unittests.cmd.devel.test_render
• tests.unittests.cmd.test_clean
• tests.unittests.cmd.test_query
• tests.unittests.cmd.test_status

Proposed Commit Message

lint: fix untyped-defs on /tests/unittest/cmd

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>)

[holmanb]

Hi @wideawakening o/

Thanks for contributing to cloud-init. This looks like a great first addition to cloud-init. Can you please sign the CLA so we can accept this contribution?

[wideawakening]

Can you please sign the CLA so we can accept this contribution?

hey, sure. should had been accepted already

[aciba90]

LGTM. Many thanks for making cloud-init better, welcome!