fix(templateRef): set ref on cached async component which wrapped in KeepAlive

[edison1105]

close #4999
close #5004

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	100 kB (+103 B)	37.9 kB (+20 B)	34.2 kB (+16 B)
vue.global.prod.js	158 kB (+103 B)	57.8 kB (+19 B)	51.4 kB (+104 B)

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	47.2 kB (+103 B)	18.3 kB (+18 B)	16.8 kB (-35 B)
createApp	55.2 kB (+103 B)	21.3 kB (+20 B)	19.5 kB (+14 B)
createSSRApp	59.3 kB (+103 B)	23.1 kB (+15 B)	21 kB (+27 B)
defineCustomElement	60.1 kB (+103 B)	22.9 kB (+27 B)	20.9 kB (+14 B)
overall	69.1 kB (+103 B)	26.5 kB (+23 B)	24 kB (-37 B)

[pkg-pr-new]

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@vue/compiler-core

pnpm add https://pkg.pr.new/@vue/compiler-core@12290

@vue/compiler-dom

pnpm add https://pkg.pr.new/@vue/compiler-dom@12290

@vue/compiler-ssr

pnpm add https://pkg.pr.new/@vue/compiler-ssr@12290

@vue/reactivity

pnpm add https://pkg.pr.new/@vue/reactivity@12290

@vue/compiler-sfc

pnpm add https://pkg.pr.new/@vue/compiler-sfc@12290

@vue/runtime-core

pnpm add https://pkg.pr.new/@vue/runtime-core@12290

@vue/runtime-dom

pnpm add https://pkg.pr.new/@vue/runtime-dom@12290

@vue/server-renderer

pnpm add https://pkg.pr.new/@vue/server-renderer@12290

@vue/shared

pnpm add https://pkg.pr.new/@vue/shared@12290

vue

pnpm add https://pkg.pr.new/vue@12290

@vue/compat

pnpm add https://pkg.pr.new/@vue/compat@12290

commit: 26930ca