Update dependency renovate to ^21.12.3

This MR contains the following updates:

Package	Type	Update	Change
renovate (source)	dependencies	patch	^21.12.2 -> ^21.12.3

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

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Release Notes

renovatebot/renovate

v21.12.3

Compare Source

21.12.3 (2020-06-17)

Bug Fixes

• docker: caching of null lookup responses (#​6534) (b277dfe)

Miscellaneous Chores

• deps: update mcr.microsoft.com/vscode/devcontainers/typescript-node docker tag to v0.123.0 (#​6532) (cf508a3)

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Renovate configuration

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🚦 Automerge: Enabled.

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• If you want to rebase/retry this MR, check this box

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This MR has been generated by Renovate Bot.