[v2] breaking: do not throw promises

[dai-shi]

The first step for #810

We need the React canary version for testing with use().

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Name	Status	Preview	Comments	Updated (UTC)
valtio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 10, 2023 3:23am

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Latest deployment of this branch, based on commit 03cd68a109fda4cfd38f24e5741c1bbf13878c6a:

Sandbox	Source
React	Configuration
React TypeScript	Configuration
React Browserify	Configuration
React Snowpack	Configuration
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[github-actions[bot]]

Size Change: -721 B (-1%)

Total Size: 50.5 kB

Filename	Size	Change
dist/esm/react.js	715 B	-17 B (-2%)
dist/esm/vanilla.js	2.32 kB	-116 B (-5%)	✅
dist/react.js	657 B	-11 B (-2%)
dist/system/react.development.js	851 B	-20 B (-2%)
dist/system/react.production.js	459 B	-12 B (-3%)
dist/system/vanilla.development.js	2.46 kB	-120 B (-5%)	✅
dist/system/vanilla.production.js	1.44 kB	-83 B (-5%)	✅
dist/umd/react.development.js	801 B	-13 B (-2%)
dist/umd/react.production.js	520 B	-6 B (-1%)
dist/umd/vanilla.development.js	2.63 kB	-124 B (-4%)
dist/umd/vanilla.production.js	1.56 kB	-79 B (-5%)	✅
dist/vanilla.js	2.51 kB	-120 B (-5%)	✅

ℹ️ View Unchanged

| Filename | Size | | :--- | :---: | | `dist/esm/index.js` | 62 B | | `dist/esm/macro.js` | 698 B | | `dist/esm/macro/vite.js` | 864 B | | `dist/esm/react/utils.js` | 225 B | | `dist/esm/utils.js` | 68 B | | `dist/esm/vanilla/utils.js` | 3.07 kB | | `dist/index.js` | 243 B | | `dist/macro.js` | 919 B | | `dist/macro/vite.js` | 1.08 kB | | `dist/react/utils.js` | 244 B | | `dist/system/index.development.js` | 236 B | | `dist/system/index.production.js` | 170 B | | `dist/system/macro.development.js` | 779 B | | `dist/system/macro.production.js` | 556 B | | `dist/system/macro/vite.development.js` | 951 B | | `dist/system/macro/vite.production.js` | 660 B | | `dist/system/react/utils.development.js` | 321 B | | `dist/system/react/utils.production.js` | 223 B | | `dist/system/utils.development.js` | 241 B | | `dist/system/utils.production.js` | 176 B | | `dist/system/vanilla/utils.development.js` | 3.28 kB | | `dist/system/vanilla/utils.production.js` | 2.19 kB | | `dist/umd/index.development.js` | 382 B | | `dist/umd/index.production.js` | 330 B | | `dist/umd/macro.development.js` | 1.03 kB | | `dist/umd/macro.production.js` | 721 B | | `dist/umd/macro/vite.development.js` | 1.23 kB | | `dist/umd/macro/vite.production.js` | 879 B | | `dist/umd/react/utils.development.js` | 400 B | | `dist/umd/react/utils.production.js` | 299 B | | `dist/umd/utils.development.js` | 398 B | | `dist/umd/utils.production.js` | 344 B | | `dist/umd/vanilla/utils.development.js` | 3.86 kB | | `dist/umd/vanilla/utils.production.js` | 2.46 kB | | `dist/utils.js` | 247 B | | `dist/vanilla/utils.js` | 3.71 kB |

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