Update dependency renovate to v20

This MR contains the following updates:

Package	Type	Update	Change
renovate (source)	dependencies	major	^19.239.11 -> ^20.0.1

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

renovatebot/renovate

v20.0.1

Compare Source

20.0.1 (2020-05-19)

Bug Fixes

• pnpm: use renovate/node for artifacts generation (8b2bba2)

v20.0.0

Compare Source

⚠ BREAKING CHANGES

• emoji’s now default to using unicode
• path for the config validator is now in lib/ and dist/ and not bin/
• Renovate will no longer create renovate/verify status checks on third party MRs.
• npm: npm, yarn and pnpm are no longer embedded with the installation

Features

• default unicodeEmoji to true (e8bbdf9)
• remove third party pr validation (082cd4e)
• npm: drop embedded managers (96fb5f4), closes #​4208
• drop node.js v10 support (ba365e3)

Tests

• node v12 only (92932ad)

Code Refactoring

• convert config-validator to TypeScript (e102132)

Miscellaneous Chores

• remove unused test (54b2ae6)

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This MR has been generated by Renovate Bot.