title: ionic - `slot` attributes are deprecated - eslint-plugin-vue
body: <p>I am getting following error in VS Code:</p>
  <pre><code>[vue/no-deprecated-slot-attribute]
  `slot` attributes are deprecated. eslint-plugin-vue
  </code></pre>
  <p><a href="https://i.stack.imgur.com/DUMLN.png" rel="noreferrer"><img src="https://i.stack.imgur.com/DUMLN.png" alt="enter image description here" /></a></p>
  <p>I have these two plugin installed in <code>.eslintrc.js</code></p>
  <pre><code>  'extends': [
      'plugin:vue/vue3-essential',
      'eslint:recommended'
    ],
  </code></pre>
  <p>And this in rules:</p>
  <pre><code>'vue/no-deprecated-slot-attribute': 'off',
  </code></pre>
  <p>What should be done in order to avoid this issue?</p>