Add OpenSSF Scorecard workflow

Author: krotname

.github/workflows/scorecard.yml

@@ -0,0 +1,27 @@
+name: OpenSSF Scorecard
+
+on:
+  branch_protection_rule:
+  schedule:
+    - cron: "23 3 * * 1"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  security-events: write
+  id-token: write
+
+jobs:
+  scorecard:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Run Scorecard
+        uses: ossf/scorecard-action@v2.4.0
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+      - name: Upload SARIF
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif