brand: Marketplace listing icon -> award (seal-like)

[bkd-dotcom]

Change the action.yml branding icon from shield to award — the closest Feather icon to a wax seal / certificate, matching the Signetry identity. (GitHub only supports Feather icons for Marketplace action icons; the custom seal logo already shows as the org/publisher image.)

[github-actions]

Signetry Reviewer — 🟡 Needs human review

A human should decide — the required check is unknown; 1 advisory finding(s) to weigh.

Deterministic gates (the authority)

Gate	Status
Required status check	— unknown
Secret scan	✅ clean
CI permission / OIDC	✅ no forbidden change
Dependency skew	✅ ok
All green	❌

Findings (1, 0 blocking)

• 🟡 Change touches a protected path: action.yml action.yml (via cross-check)
  • action.yml matches a protected pattern (action.yml). Changes here alter shared/foundational surface and warrant a designated reviewer.
  • Fix: Route to a code owner / architecture reviewer.

Merge

A human should review and merge.

This review is advisory. It never merges on its own judgement — the deterministic gates + a human are the authority. Findings can have false negatives; a green bot verdict is not a guarantee.