Update dependency renovate to v19.189.2

This MR contains the following updates:

Package	Type	Update	Change	References
renovate	devDependencies	patch	19.189.1 -> 19.189.2	homepage, source

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Release Notes

renovatebot/renovate

v19.189.2

Compare Source

19.189.2 (2020-03-31)

Bug Fixes

• deps: update dependency gradle to v6.3.0 (#​5839) (b309431)

Documentation

• fix bundler auth readme (1359a17)

Miscellaneous Chores

• contributor: Add Viral Ruparel as contributor (#​5836) (ed5792a)
• deps: update dependency @​types/node to v11.15.8 (f25ae78)
• deps: update mcr.microsoft.com/vscode/devcontainers/typescript-node docker tag to v0.109.0 (106b6c3)
• standardise Dockerfile env syntax (d4691b1)

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