fix(reactivity): shallowReactive map "unwraps" the nested refs

[liuseen-l]

[BREAKING CHANGE]

fix https://github.com/vuejs/core/issues/11249 fix https://github.com/vuejs/core/issues/8501 closes #8502

although pr #8502 fix #8501 issue, it is a destructive fix for shallowReactive, so i take a relatively elegant approach to the issue. At the same time, there are also the same issues with Set, so they have been modified together

[sxzz]

/ecosystem-ci run

[vue-bot]

📝 Ran ecosystem CI: Open

suite	result
nuxt	:white_check_mark: success
pinia	:white_check_mark: success
quasar	:x: failure
router	:white_check_mark: success
test-utils	:white_check_mark: success
vant	:white_check_mark: success
vite-plugin-vue	:white_check_mark: success
vitepress	:white_check_mark: success
vue-i18n	:white_check_mark: success
vue-macros	:x: failure
vuetify	:white_check_mark: success
vueuse	:white_check_mark: success
vue-simple-compiler	:white_check_mark: success

[github-actions[bot]]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	85.9 kB (+76 B)	32.7 kB (+38 B)	29.5 kB (+33 B)
vue.global.prod.js	132 kB (+76 B)	49.4 kB (+32 B)	44.4 kB (+64 B)

Usages

Name	Size	Gzip	Brotli
createApp	48 kB (+76 B)	18.9 kB (+34 B)	17.2 kB (+26 B)
createSSRApp	50.7 kB (+76 B)	20 kB (+31 B)	18.2 kB (+29 B)
defineCustomElement	50.3 kB (+76 B)	19.7 kB (+34 B)	17.9 kB (+35 B)
overall	61.3 kB (+76 B)	23.7 kB (+32 B)	21.5 kB (-14 B)

[jacekkarczmarczyk]

there are also the same issues with Set

Shouldn't there be a test for Set as well in that case?