Update dependency npm-registry-client to v8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
npm-registry-client	~7.5.0 -> ~8.6.0

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Release Notes

npm/npm-registry-client

### [`v8.6.0`](https://togithub.com/npm/npm-registry-client/blob/HEAD/CHANGELOG.md#​860-httpsgithubcomnpmnpm-registry-clientcomparev851v860-2018-07-13) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.5.1...v8.6.0) ##### Features - **access:** Add support for npm access to set per-package 2fa requirements ([8b472d2](https://togithub.com/npm/npm-registry-client/commit/8b472d2)) #### [8.5.1](https://togithub.com/npm/npm-registry-client/compare/v8.5.0...v8.5.1) (2018-03-08) ##### Bug Fixes - **error:** improve `User not found` publish message ([#​167](https://togithub.com/npm/npm-registry-client/issues/167)) ([5ebcffc](https://togithub.com/npm/npm-registry-client/commit/5ebcffc)) ### [`v8.5.1`](https://togithub.com/npm/npm-registry-client/blob/HEAD/CHANGELOG.md#​851-httpsgithubcomnpmnpm-registry-clientcomparev850v851-2018-03-08) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.5.0...v8.5.1) ##### Bug Fixes - **error:** improve `User not found` publish message ([#​167](https://togithub.com/npm/npm-registry-client/issues/167)) ([5ebcffc](https://togithub.com/npm/npm-registry-client/commit/5ebcffc)) ### [`v8.5.0`](https://togithub.com/npm/npm-registry-client/compare/v8.4.0...v8.5.0) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.4.0...v8.5.0) ### [`v8.4.0`](https://togithub.com/npm/npm-registry-client/compare/v8.3.0...v8.4.0) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.3.0...v8.4.0) ### [`v8.3.0`](https://togithub.com/npm/npm-registry-client/compare/v8.2.0...v8.3.0) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.2.0...v8.3.0) ### [`v8.2.0`](https://togithub.com/npm/npm-registry-client/compare/v8.1.1...v8.2.0) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.1.1...v8.2.0) ### [`v8.1.1`](https://togithub.com/npm/npm-registry-client/compare/v8.1.0...v8.1.1) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.1.0...v8.1.1) ### [`v8.1.0`](https://togithub.com/npm/npm-registry-client/compare/v8.0.2...v8.1.0) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.0.2...v8.1.0) ### [`v8.0.2`](https://togithub.com/npm/npm-registry-client/compare/v8.0.1...v8.0.2) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v8.0.1...v8.0.2) ### [`v8.0.1`](https://togithub.com/npm/npm-registry-client/compare/v7.5.0...v8.0.1) [Compare Source](https://togithub.com/npm/npm-registry-client/compare/v7.5.0...v8.0.1)

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