chore(ci): add OpenSSF scorecard

Author: scop

.github/workflows/scorecard.yml

@@ -0,0 +1,31 @@
+name: Scorecard
+on:
+  branch_protection_rule:
+  schedule:
+    - cron: "42 4 * * SAT"
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      security-events: write
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+      - uses: ossf/scorecard-action@05b42c624433fc40578a4040d5cf5e36ddca8cde # v2.4.2
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+      - uses: github/codeql-action/upload-sarif@181d5eefc20863364f96762470ba6f862bdef56b # v3.29.2
+        with:
+          sarif_file: results.sarif