refactor!: Rewrite check changelog to action

[Mrtenz]

This rewrites the check changelog workflow to an action, letting us use github.action_repository and github.action_ref, removing the need for specifying an action ref.

---

Note

Replaces the reusable workflow with a composite action for changelog checks, defaulting to current action repo/ref and updating checkout/setup steps.

• GitHub Actions:
  • New composite action /.github/actions/check-changelog/action.yml:
    • Accepts base-branch, head-ref, labels, pr-number, repo, plus github-tools-repository and github-tools-ref (defaulting to github.action_repository and github.action_ref).
    • Performs label gate, checks out target repo (actions/checkout@v5), logs selected tools repo/ref, checks out tools into ./.github-tools, enables Corepack, sets up Node via ./.github-tools/.nvmrc, installs deps, and runs changelog:check.
  • Removed reusable workflow /.github/workflows/changelog-check.yml.

^{Written by Cursor Bugbot for commit 9d0012c. This will update automatically on new commits. Configure here.}

[cryptodev-2s]

Minor change otherwise the changes looks good to me!

[cursor]

Bug: Context expressions invalid in action input defaults

GitHub Actions metadata files (action.yml) do not support context expressions (like ${{ github.action_repository }}) in input default values. These will be interpreted as literal strings (e.g., "${{ github.action_repository }}"), causing the checkout step to fail. Remove the defaults and handle the fallback logic directly in the step inputs (e.g., repository: ${{ inputs.github-tools-repository || github.action_repository }}).

 

[cryptodev-2s]

LGTM!