fix: process some keys for el[key] in hydration mismatch

[zh-lx]

close #10057

Some keys need to be processed before they can be obtained by el[key]. Such as readonly -> readOnly

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	89.5 kB	34.1 kB	30.7 kB
vue.global.prod.js	147 kB	53.3 kB	47.7 kB

Usages

Name	Size	Gzip	Brotli
createApp	49.8 kB	19.5 kB	17.8 kB
createSSRApp	53.1 kB	20.8 kB	19 kB
defineCustomElement	52.1 kB	20.2 kB	18.5 kB
overall	63.3 kB	24.4 kB	22.3 kB

[yyx990803]

The better fix is dealing with boolean attributes w/ separate logic - handling special cases like this is fragile.