Update dependency eslint-formatter-pretty to v4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint-formatter-pretty	^3.0.0 -> ^4.0.0

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Release Notes

sindresorhus/eslint-formatter-pretty

v4.1.0

Compare Source

• Add TypeScript definition (#​54) decbd28

v4.0.0

Compare Source

Breaking

• Require Node.js 10 (#​51) 2b21776

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