Sync repo templates ⚙

[coreosbot-releng]

Created by GitHub workflow (source).

Sync with coreos/repo-templates@5d21756.

[gemini-code-assist]

Code Review

This pull request, generated by a workflow, removes the dependabot configuration for GitHub Actions. While this aligns the repository with the central template, it also disables automated updates for GitHub Actions. This could lead to using outdated and potentially vulnerable versions in the future. I've added a comment to highlight this potential risk and recommend reconsidering this change or documenting an alternative update strategy.

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.github/dependabot.yml (10-19)

Removing the dependabot configuration for GitHub Actions will disable automated dependency updates. This increases the risk of using outdated actions, which may contain security vulnerabilities or bugs. It is highly recommended to keep automated updates enabled to ensure the security and stability of your CI/CD workflows. If this change is intentional, please consider documenting the manual process that will be used to keep actions up-to-date.