Add Macaron analysis workflow

Author: Ela689

.github/workflows/macaron-analysis.yaml

@@ -0,0 +1,47 @@
+# Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
+# Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/.
+
+# Run Macaron policies and generate supply-chain security analysis reports.
+# See https://github.com/oracle/macaron
+
+name: Run Macaron to check supply chain security issues
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/**"
+      - "Dockerfile"
+      - "**/*.sh"
+  pull_request:
+    paths:
+      - ".github/workflows/**"
+      - "Dockerfile"
+      - "**/*.sh"
+  schedule:
+    - cron: "20 15 * * 3"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  run_macaron:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      # Check the GitHub Actions workflows and shell scripts in the repository for supply-chain issues.
+      - name: Run Macaron analysis
+        uses: oracle/macaron@v0.10.0
+        with:
+          macaroon-extra-args: >-
+            analyze
+            -purl pkg:github/oracle-devrel/cd3-automation-toolkit
+