Add OSSF Scorecard (#487)

* Create scorecard.yml

* Add OSSF scorecard badge

* Update README.md

.github/workflows/scorecard.yml

@@ -0,0 +1,48 @@
+name: Scorecard
+on:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: "24 3 * * 1"
+  push:
+    branches:
+      - main
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        with:
+          persist-credentials: false
+
+      - name: Run analysis
+        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # v2.3.1
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+
+      - name: Upload results
+        uses: actions/upload-artifact@97a0fba1372883ab732affbe8f94b823f91727db # v3.pre.node20
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard (optional).
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif

README.md

@@ -6,6 +6,7 @@
 [![postgresql-17-pgdg-package](https://github.com/percona/pg_stat_monitor/actions/workflows/postgresql-17-pgdg-package.yml/badge.svg)](https://github.com/percona/pg_stat_monitor/actions/workflows/postgresql-17-pgdg-package.yml)
 
 [![PGXN version](https://badge.fury.io/pg/pg_stat_monitor.svg)](https://badge.fury.io/pg/pg_stat_monitor)
+[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/percona/pg_stat_monitor/badge)](https://scorecard.dev/viewer/?uri=github.com/percona/pg_stat_monitor)
 [![Code coverage](https://codecov.io/gh/percona/pg_stat_monitor/branch/main/graph/badge.svg)](https://codecov.io/gh/percona/pg_stat_monitor)
 [![Forum](https://img.shields.io/badge/Forum-join-brightgreen)](https://forums.percona.com/)
 # pg_stat_monitor: Query Performance Monitoring Tool for PostgreSQL