[BUG] Single quotes are replaced by double quotes

[francoismassart]

Describe the bug
MINOR If the linted code use single quotes around the class attribute value, after applying the "tailwindcss/classnames-order" FIX the single quotes are replaced by double quotes.

To Reproduce
Steps to reproduce the behavior:

1. Enable tailwindcss/classnames-order rule
2. Use invalid classnames with single quotes order like class='flex container'
3. Apply the fix via VSCode's UI or via a npm script eslint --plugin 'tailwindcss' --fix --rule '"tailwindcss/classnames-order": 2' demo.html
4. See how single quotes were replaced class='flex container' was replaced by class="container flex"

Expected behavior
Only the value should be fixed leave the surrounding quotes as is.

Environment (please complete the following information):

• OS: macOS 10.14.6 Mojave
• Softwares + version:
  • VSCode 1.54.3
  • Terminal 2.9.5
  • npm 6.14.5
  • node v14.5.0