ci: fix blocked dco check in merge queue

[psschwei]

Pull Request

Issue

Description

DCO Bot won't run in merge queues (dcoapp/app#199), so adding a workaround so we can (a) keep DCO check required, and (b) merge PRs.

Testing

• Tests added to the respective file if code was changed
• New code has 100% coverage if code was added
• Ensure existing tests and github automation passes (a maintainer will kick off the github automation when the rest of the PR is populated)

Attribution

• AI coding assistants used

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Adding a new component, requirement, sampling strategy, or tool?

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• Component
• Requirement
• Sampling Strategy
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[psschwei]

since our CI is essentially broken at the moment, am bypassing review to get things fixed asap