ci: add openssf scorecard workflow

.github/workflows/scorecard.yml

@@ -0,0 +1,36 @@
+name: Scorecard supply-chain security
+on:
+  branch_protection_rule:
+  schedule:
+    - cron: '32 23 * * 6'
+  push:
+    branches: [ "main" ]
+permissions: read-all
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      id-token: write
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@v2
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@v4
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif