fix(deps): update react monorepo to v16.8.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
react	dependencies	patch	16.8.1 -> 16.8.2	homepage, source
react-dom	dependencies	patch	16.8.1 -> 16.8.2	homepage, source

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Release Notes

facebook/react

v16.8.2

Compare Source

React DOM

• Fix ReactDOM.render being ignored inside useEffect. (@​gaearon in #​14799)
• Fix a crash when unmounting empty portals. (@​gaearon in #​14820)
• Fix useImperativeHandle to work correctly when no deps are specified. (@​gaearon in #​14801)
• Fix crossOrigin attribute to work in SVG image elements. (@​aweary in #​14832)
• Fix a false positive warning when using Suspense with Hooks. (@​gaearon in #​14821)

React Test Utils and React Test Renderer

• Include component stack into the act() warning. (@​threepointone in #​14855)

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