Update dependency react-dom to v15.5.0 (master)

[appcues-wss]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
react-dom (source)	15.4.2 -> 15.5.0

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	CVE
High	7.5	CVE-2020-7733
High	7.5	CVE-2020-7793

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Release Notes

facebook/react (react-dom)

v15.5.0

Compare Source

Note: this release has a critical issue and was deprecated. Please update to 15.5.4 or higher.

React

• Added a deprecation warning for React.createClass. Points users to create-react-class instead. (@​acdlite in #d9a4fa4)
• Added a deprecation warning for React.PropTypes. Points users to prop-types instead. (@​acdlite in #​043845c)
• Fixed an issue when using ReactDOM together with ReactDOMServer. (@​wacii in #​9005)
• Fixed issue with Closure Compiler. (@​anmonteiro in #​8895)
• Another fix for Closure Compiler. (@​Shastel in #​8882)
• Added component stack info to invalid element type warning. (@​n3tr in #​8495)

React DOM

• Fixed Chrome bug when backspacing in number inputs. (@​nhunzaker in #​7359)
• Added react-dom/test-utils, which exports the React Test Utils. (@​bvaughn)

React Test Renderer

• Fixed bug where componentWillUnmount was not called for children. (@​gre in #​8512)
• Added react-test-renderer/shallow, which exports the shallow renderer. (@​bvaughn)

React Addons

• Last release for addons; they will no longer be actively maintained.
• Removed peerDependencies so that addons continue to work indefinitely. (@​acdlite and @​bvaughn in 8a06cd7 and 67a8db3)
• Updated to remove references to React.createClass and React.PropTypes (@​acdlite in 12a96b9)
• react-addons-test-utils is deprecated. Use react-dom/test-utils and react-test-renderer/shallow instead. (@​bvaughn)

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