add npm install

Author: Firenza

.github/workflows/local_action.yml

@@ -15,6 +15,9 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
+      - name: npm install
+        run: npm install
+
       - name: Secrets to environment variables
         uses: ./ # Uses an action in the root directory
         with: