chore(ci): bump standards reusable workflow pins (#276)

Bumps stale `hyperpolymath/standards/.github/workflows/*-reusable.yml`
pins to current standards HEAD
(`d135b05bfc647d0c0fbfedc7e80f37ea50f49236`) to clear governance 'Check
Workflow Staleness' (ADR-003) failures. CI-pin changes only.

OWNER-AUTHORIZED estate pin-bump campaign 2026-06-24.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: hyperpolymath

.github/workflows/governance.yml

@@ -34,4 +34,4 @@ jobs:
     # matches the sibling repos' pin (e.g. ochrance-framework). Bump
     # deliberately, never float: an unpinned reusable workflow is an
     # unpinned trust boundary. mirror.yml / scorecard.yml already pin.
-    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@861b5e911d9e5dcfb3c0ab3dd2a9a3c8fd0a1613
+    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@d135b05bfc647d0c0fbfedc7e80f37ea50f49236

.github/workflows/mirror.yml

@@ -11,6 +11,6 @@ permissions:
 
 jobs:
   mirror:
-    uses: hyperpolymath/standards/.github/workflows/mirror-reusable.yml@e6b2884722350515934d443daf23442f2195796f
+    uses: hyperpolymath/standards/.github/workflows/mirror-reusable.yml@d135b05bfc647d0c0fbfedc7e80f37ea50f49236
     timeout-minutes: 10
     secrets: inherit

.github/workflows/scorecard.yml

@@ -21,6 +21,6 @@ jobs:
       contents: read
       security-events: write
       id-token: write
-    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@e0caf11508a3989574713c78f5f444f2ce5e33ef
+    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@d135b05bfc647d0c0fbfedc7e80f37ea50f49236
     timeout-minutes: 10
     secrets: inherit

.github/workflows/secret-scanner.yml

@@ -15,5 +15,5 @@ permissions:
 
 jobs:
   scan:
-    uses: hyperpolymath/standards/.github/workflows/secret-scanner-reusable.yml@3e4bd4c93911750727e2e4c66dff859e00079da0
+    uses: hyperpolymath/standards/.github/workflows/secret-scanner-reusable.yml@d135b05bfc647d0c0fbfedc7e80f37ea50f49236
     secrets: inherit