title: Define custom npm install procedure for azure/webapps-deploy@v2
body: <p>My project currently contains 2 apps. The first is the application Backend (NestJS) and the second is the client (VueJS).</p>
  <p>The current folder structure follows:</p>
  <ul>
  <li>Root (NestJS)</li>
  <li>./client/ (VueJS)</li>
  </ul>
  <p>When I am deploying my app to Azure App Service I am using the <code>azure/webapps-deploy@v2</code> action. It's procedure is to run <code>npm install</code> in the root of the project but I need it to also run in the sub project containing the client packages. How can this be done? Are there any arguments to provide the webapps deploy action to include that addition <code>npm install</code> command?</p>