Update dependency renovate to ^19.221.0

This MR contains the following updates:

Package	Type	Update	Change
renovate (source)	dependencies	minor	^19.220.0 -> ^19.221.0

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

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Release Notes

renovatebot/renovate

v19.221.0

Compare Source

Features

• presets: use github for native presets (#​6075) (d2f8aaa)

v19.220.2

Compare Source

19.220.2 (2020-04-28)

Bug Fixes

• gitea: pass through gitPrivateKey (#​6074) (4a266c6)

v19.220.1

Compare Source

19.220.1 (2020-04-28)

Bug Fixes

• presets: correct github file name (cc3554f)

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Renovate configuration

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🚦 Automerge: Enabled.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

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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.