fix(compiler-sfc): handle keyof operator with indexed object

[Disservin]

fixes #11580

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	90.2 kB	34.6 kB	31.2 kB
vue.global.prod.js	147 kB	54.1 kB	48.1 kB

Usages

Name	Size	Gzip	Brotli
createApp	49.7 kB	19.5 kB	17.8 kB
createSSRApp	53.2 kB	21 kB	19.1 kB
defineCustomElement	51.9 kB	20.2 kB	18.5 kB
overall	63.2 kB	24.5 kB	22.3 kB

[Disservin]

Vue doesn't support the case where the prop key is a symbol, so I didn't bother fixing the current logic which will return String in this case
i.e

const sym = Symbol('uniqueKey');

const props = defineProps<{
  [sym]: string;
}>()

Error: [@vue/compiler-sfc] Unsupported computed key in type referenced by a macro