Update breakage: use organization-wide workflow

[MaxenceGollier]

Following JuliaSmoothOptimizers/.github#18.

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Pull request overview

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Suppressed comments (3)

.github/workflows/Breakage.yml:9

• The reusable workflow reference is pinned to the moving main branch. This makes the breakage checks non-reproducible and creates a supply-chain risk (the workflow behavior can change without any change in this repo). Pin to a specific commit SHA (and bump it deliberately when you want updates).

    uses: JuliaSmoothOptimizers/.github/.github/workflows/Breakage.yml@main

.github/workflows/CommentBreakage.yml:11

• The reusable workflow reference is pinned to the moving main branch. Pinning to a commit SHA makes the PR-commenting behavior deterministic and avoids unexpected changes coming from the shared workflow repo.

    uses: JuliaSmoothOptimizers/.github/.github/workflows/CommentBreakage.yml@main

.github/workflows/CommentBreakage.yml:11

• The shared CommentBreakage reusable workflow downloads breakage-* artifacts; the underlying dawidd6/action-download-artifact defaults to failing when no artifacts are found. The shared Breakage workflow can exit early with no dependents (matrix empty), which means no breakage-* artifacts exist and this workflow_run will likely fail even though breakage was a no-op.

This needs a change in the org workflow (e.g., set if_no_artifact_found: warn|ignore for the breakage artifact download, or always upload a placeholder artifact when the matrix is empty) and then pin to that fixed commit.

  workflow_run:
    workflows: ["Breakage"]
    types:
      - completed

jobs:
  comment_pr:
    uses: JuliaSmoothOptimizers/.github/.github/workflows/CommentBreakage.yml@main

[tmigot]

Thanks @MaxenceGollier