chore(ci): bump standards reusable workflow pins to d135b05bfc64 (#20)

Bump stale hyperpolymath/standards reusable workflow pins to current
standards HEAD (d135b05bfc647d0c0fbfedc7e80f37ea50f49236) to clear governance 'Check Workflow
Staleness' (ADR-003) failures.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/governance.yml

@@ -13,5 +13,5 @@ permissions:
 
 jobs:
   governance:
-    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@861b5e911d9e5dcfb3c0ab3dd2a9a3c8fd0a1613
+    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@d135b05bfc647d0c0fbfedc7e80f37ea50f49236
     timeout-minutes: 10