fix(customElement): properly remove hyphenated attribute

[edison1105]

close #12139

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	101 kB (+9 B)	38.1 kB (+5 B)	34.2 kB (+41 B)
vue.global.prod.js	160 kB (+9 B)	58 kB (+7 B)	51.6 kB (+21 B)

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	49.1 kB (+9 B)	18.9 kB (+11 B)	17.3 kB (+11 B)
createApp	55.7 kB (+9 B)	21.4 kB (+11 B)	19.6 kB (-27 B)
createSSRApp	59.7 kB (+9 B)	23.1 kB (+10 B)	21 kB (+15 B)
defineCustomElement	60.5 kB (+9 B)	23 kB (+8 B)	20.9 kB (+35 B)
overall	69.4 kB (+9 B)	26.5 kB (+8 B)	24.1 kB (+76 B)

[pkg-pr-new]

Open in Stackblitz

@vue/compiler-core

pnpm add https://pkg.pr.new/@vue/compiler-core@12143

@vue/compiler-sfc

pnpm add https://pkg.pr.new/@vue/compiler-sfc@12143

@vue/compiler-dom

pnpm add https://pkg.pr.new/@vue/compiler-dom@12143

@vue/compiler-ssr

pnpm add https://pkg.pr.new/@vue/compiler-ssr@12143

@vue/reactivity

pnpm add https://pkg.pr.new/@vue/reactivity@12143

@vue/runtime-dom

pnpm add https://pkg.pr.new/@vue/runtime-dom@12143

@vue/runtime-core

pnpm add https://pkg.pr.new/@vue/runtime-core@12143

@vue/server-renderer

pnpm add https://pkg.pr.new/@vue/server-renderer@12143

@vue/shared

pnpm add https://pkg.pr.new/@vue/shared@12143

vue

pnpm add https://pkg.pr.new/vue@12143

@vue/compat

pnpm add https://pkg.pr.new/@vue/compat@12143

commit: 107ec22