chore(ci): add OpenSSF Scorecard

https://scorecard.dev

Author: scop

.github/workflows/scorecard.yaml

@@ -0,0 +1,37 @@
+name: OpenSSF Scorecard
+
+on:
+  branch_protection_rule:
+    schedule:
+      - cron: "42 4 * * SAT"
+  push:
+    branches:
+      - main
+
+permissions: {}
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+      security-events: write
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - uses: ossf/scorecard-action@05b42c624433fc40578a4040d5cf5e36ddca8cde # v2.4.2
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 7
+      - uses: github/codeql-action/upload-sarif@192325c86100d080feab897ff886c34abd4c83a3 # v3.30.3
+        with:
+          sarif_file: results.sarif

README.md

@@ -1,6 +1,7 @@
 # bash-completion
 
 [![CI](https://github.com/scop/bash-completion/actions/workflows/ci.yaml/badge.svg)](https://github.com/scop/bash-completion/actions/workflows/ci.yaml)
+[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/scop/bash-completion/badge)](https://scorecard.dev/viewer/?uri=github.com%2Fscop%2Fbash-completion)
 
 ## Introduction