Vue-meta working doesn't set empty attribute
[issue link]Hi. I am trying to set this tag
<script src="https://www.google.com/recaptcha/api.js?onload=vueRecaptchaApiLoaded&render=explicit" async defer></script>
But this one
{ src: 'https://www.google.com/recaptcha/api.js?onload=vueRecaptchaApiLoaded&render=explicit', async: undefined, defer: undefined }
generates this in Nuxt
<script data-n-head="true" src="https://www.google.com/recaptcha/api.js?onload=vueRecaptchaApiLoaded&render=explicit">