Install dependencies in code scanning config test

Author: henrymercer

.github/workflows/codescanning-config-cli.yml

@@ -55,6 +55,16 @@ jobs:
     steps:
     - name: Check out repository
       uses: actions/checkout@v5
+
+    - name: Set up Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+        cache: 'npm'
+
+    - name: Install dependencies
+      run: npm install
+
     - name: Prepare test
       id: prepare-test
       uses: ./.github/actions/prepare-test