fix(ci): use the canonical Scorecard wrapper instead of a local copy

The staleness gate rejects ANY workflow containing both
`ossf/scorecard-action@` and `github/codeql-action/upload-sarif@`, whatever
its triggers. 273 of 302 estate repos already call standards'
`scorecard-reusable.yml`, which reports with `results_format: json` +
`publish_results: true` and never uploads SARIF to Code Scanning.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/scorecard.yml

@@ -1,35 +1,20 @@
 # SPDX-License-Identifier: MPL-2.0
-name: OSSF Scorecard
+name: Scorecards supply-chain security
 
 on:
-  push:
-    branches: [main, master]
+  branch_protection_rule:
   schedule:
-    - cron: '0 4 * * *'
-  workflow_dispatch:
+    - cron: '23 4 * * 1'
+  push:
+    branches: [main]
 
-permissions:
-  contents: read
+permissions: read-all
 
 jobs:
   analysis:
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
+    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@81dbf2dd854b1444fd6236fa2352474383b2c2b9
     permissions:
+      contents: read
       security-events: write
       id-token: write
-    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-        with:
-          persist-credentials: false
-
-      - name: Run Scorecard
-        uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.3.1
-        with:
-          results_file: results.sarif
-          results_format: sarif
-
-      - name: Upload results
-        uses: github/codeql-action/upload-sarif@7188fc363630916deb702c7fdcf4e481b751f97a # v3.31.8
-        with:
-          sarif_file: results.sarif
+    secrets: inherit