Make vue/no-ref-as-operand fixable

[sapphi-red]

Tell us about your environment

• ESLint version: 7.16.0
• eslint-plugin-vue version: 7.4.0
• Node version: 14.15.3

The problem you want to solve.

Your take on the correct solution to problem.
Make vue/no-ref-as-operand fixable.

Additional context

Since this autofix will change not just the format but also the meaning of the code, maybe it should not be auto-fixed.