fix workflow syntax

Author: mazen-r

.github/workflows/publish.yaml

@@ -17,8 +17,9 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
-        run: npm install
-        run: npm build
+        run: |
+          npm install
+          npm run build
 
       - name: Publish to NPM
         run: |