Allow empty script in compileScript

[turbobuilt]

In the given link, the compiler fails if there's no script/script setup. This shouldn't happen. I have to write "console.log(...)" or something, otherwise it fails with [@vue/compiler-sfc] SFC contains no <script> tags.

https://github.com/vuejs/core/blob/bc688434afa1fd1800420430cf65238ecaa371f2/packages/compiler-sfc/src/compileScript.ts#L178

[turbobuilt]

Ok i figured out I can just make an empty default component. It would be nice tho if it could make an empty default component with just render on it.