fix(compat): ensure false value on input value retains attribute

[edison1105]

close #13205

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	100 kB	38.1 kB	34.4 kB
vue.global.prod.js	158 kB	58.3 kB	51.9 kB

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	46.4 kB	18.1 kB	16.6 kB
createApp	54.4 kB	21.2 kB	19.4 kB
createSSRApp	58.6 kB	22.9 kB	20.9 kB
defineCustomElement	59.2 kB	22.7 kB	20.7 kB
overall	68.5 kB	26.3 kB	24 kB

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commit: 50795f7