Update dependency eslint-plugin-react to v7.21.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
eslint-plugin-react	devDependencies	minor	7.20.6 -> 7.21.2

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Release Notes

yannickcr/eslint-plugin-react

v7.21.2

Compare Source

Fixed

• [prop-types]: handle RestElement in destructured param (#​2805 @​hank121314)

v7.21.1

Compare Source

Fixed

• [jsx-handler-names]: avoid a crash when an inline prop is not a MemberExpression (#​2803 @​willheslam)

v7.21.0

Compare Source

Added

• [button-has-type]: support trivial ternary expressions (#​2748 @​Hypnosphi)
• [jsx-handler-names]: add checkInlineFunction option (#​2761 @​dididy)
• [jsx-no-literals]: add noAttributeStrings option (#​2782 @​TaLeaMonet)
• [prop-types]: add support for PropTypes.exact (#​2740 @​jzabala)
• [jsx-filename-extension]: Add allow option (#​2746 @​remcohaszing)

Fixed

• [function-component-definition]: ignore object properties (#​2771 @​stefan-wullems)
• [forbid-component-props]: Implemented support for "namespaced" components (#​2767 @​mnn)
• [prefer-read-only-props]: support Flow $ReadOnly (#​2772, #​2779, #​2770 @​karolina-benitez)
• [jsx-handler-names]: handle whitespace (#​2789 @​AriPerkkio)
• [prop-types]: Detect TypeScript types for destructured default prop values (#​2780 @​sunghyunjo)
• [jsx-pascal-case]: Handle single character namespaced component (#​2791 @​daviferreira)
• [jsx-closing-bracket-location]: In tag-aligned, made a distinction between tabs and spaces (#​2796 @​Moong0122)
• [jsx-handler-names]: false positive when handler name begins with number (#​1689 @​jsphstls)
• [prop-types]: Detect JSX returned by sequential expression (#​2801 @​mikol)
• [jsx-props-no-multi-spaces]: "Expected no line gap between" false positive (#​2792 @​karolina-benitez)
• [no-unknown-property]: check attributes with any input case (#​2790 @​julienw)
• [prop-types]/[no-unused-prop-types]: handle CallExpression in ReturnType (#​2802 @​hank121314)
• [jsx-uses-react]: mark fragment variables as used (#​2775 @​remcohaszing)
• [no-unused-prop-types]: improve component declared props detection ([#​2755][] @​jzabala)
• [jsx-props-no-multi-spaces]: Show error in multi-line props (#​2756 @​iiison)

Changed

• [Tests][jsx-one-expression-per-line]: add passing tests (#​2799 @​TaLeaMonet)
• [Tests][prop-types]: add test (#​2757 @​jzabala)

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[coveralls]

Coverage remained the same at 100.0% when pulling bbd8a55 on renovate/eslint-plugin-react-7.x into 00ceab0 on develop.