[BUG] before:content with variant breaks autofix in vue

[illeb]

Describe the bug
It seems that having a before:content with an arbitrary variant (for example, before:content-[\'\']) breaks the autofixer (launched via eslint --ext .js,.vue,.ts . --fix) with the following error:

TypeError: Cannot read properties of null (reading 'type')
Occurred while linting /home/projects/nuxt-starter-t1gumu/app.vue:1
Rule: "tailwindcss/classnames-order"
    at isArrayExpression (file:///home/projects/nuxt-starter-t1gumu/node_modules/eslint-plugin-tailwindcss/lib/util/ast.js:91:92)
    at isVueValidAttributeValue (file:///home/projects/nuxt-starter-t1gumu/node_modules/eslint-plugin-tailwindcss/lib/util/ast.js:113:10)
    at Object.isValidVueAttribute (file:///home/projects/nuxt-starter-t1gumu/node_modules/eslint-plugin-tailwindcss/lib/util/ast.js:176:8)
    at EventEmitter.VAttribute (file:///home/projects/nuxt-starter-t1gumu/node_modules/eslint-plugin-tailwindcss/lib/rules/classnames-order.js:253:25)

The issue seems to be present only if a :class is used in a SFC vue file with a condition, for example:
<h1 :class="{ 'before:content-[\'\'] before:absolute': true }">
In fact,
<h1 class="before:content-[\'\'] before:absolute">
does not cause errors

To Reproduce
Steps to reproduce the behavior:

1. Go to https://stackblitz.com/edit/autofix-broken
2. run a yarn lint --fix in console

Expected behavior
The autofixer should work with no errors

Screenshots
N/A

Environment (please complete the following information):

• OS: macOS
• Softwares + version used:
  • "nuxt": "3.11.0"
  • "eslint-plugin-tailwindcss": "3.15.1"
  • "tailwindcss": "3.4.1"
  • "@nuxt/eslint-config": "0.2.0",
  • "@nuxtjs/eslint-module": "4.1.0",

eslint config file or live demo
I managed to ricreate the issue with
https://stackblitz.com/edit/autofix-broken