fix(deps): update dependency update-notifier to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
update-notifier	dependencies	major	^3.0.1 -> ^4.0.0

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Release Notes

yeoman/update-notifier

v4.0.0

Compare Source

Breaking

• Remove the callback option (#​158) fb5161c
  Use the new .fetchInfo() method instead.
• Rename the boxenOpts option to boxenOptions 39682de
• Update boxen dependency
  This may affect your boxenOptions values.
• Disable update notifications when NODE_ENV is test (#​173) b1525e6

Fixes

• Avoid showing update notification if current version is the latest (#​174) bc1721a
• Fix the presented install command for globally installed npm packages (#​165) bf73119

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[JustinBeckwith]

🎉 This PR is included in version 1.8.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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