fix(types): defineCustomElement props inference with array emits

[andylizi]

Fixes #11353

defineCustomElement using components with emits: ["array"] currently resolves to // overload 2: object format with no props instead of // overload 5: the returned value of defineComponent, so the resulting prop type is readonly.

This PR is the only successful result out of my many attempts to fix this. Frankly, I still don't understand why this works but the old code doesn't.

[edison1105]

/ecosystem-ci run

[vue-bot]

📝 Ran ecosystem CI: Open

suite	result	latest scheduled
language-tools	❌ failure	❌ failure
nuxt	✅ success	✅ success
pinia	✅ success	✅ success
primevue	✅ success	✅ success
quasar	✅ success	✅ success
radix-vue	✅ success	✅ success
router	✅ success	✅ success
test-utils	✅ success	✅ success
vant	✅ success	✅ success
vite-plugin-vue	✅ success	✅ success
vitepress	✅ success	✅ success
vue-i18n	❌ failure	❌ failure
vue-macros	✅ success	✅ success
vuetify	✅ success	❌ failure
vueuse	✅ success	✅ success
vue-simple-compiler	✅ success	✅ success

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	97.3 kB (+7.2 kB)	37 kB (+2.41 kB)	33.3 kB (+2.13 kB)
vue.global.prod.js	155 kB (+8.16 kB)	56.7 kB (+2.7 kB)	50.5 kB (+2.43 kB)

Usages

Name	Size	Gzip	Brotli
createApp	53.8 kB (+4.19 kB)	20.9 kB (+1.38 kB)	19 kB (+1.21 kB)
createSSRApp	57.8 kB (+4.57 kB)	22.5 kB (+1.52 kB)	20.4 kB (+1.34 kB)
defineCustomElement	57.2 kB (+5.26 kB)	22 kB (+1.73 kB)	20 kB (+1.52 kB)
overall	67.4 kB (+4.25 kB)	25.9 kB (+1.39 kB)	23.5 kB (+1.25 kB)