ci: reduce addons area for containerd config tests

[jackfrancis]

Reason for Change:

This PR removes some enabled addons from the containerd test configs, because the containerd cluster config carries a slightly higher cloud-init payload, and those addons are contributing to PR test errors due to too many bytes. :/

Issue Fixed:

Credit Where Due:

Does this change contain code from or inspired by another project?

• No
• Yes

If "Yes," did you notify that project's maintainers and provide attribution?

• No
• Yes

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

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This pull-request has been approved by: jackfrancis

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