Update Node.js to v16 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
circleci/node	docker	major	14 -> 16
circleci/node	docker	major	12 -> 16
circleci/node	docker	major	10 -> 16
circleci/node	docker	major	15 -> 16

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Configuration

📅 Schedule: "after 10pm,before 6am" in timezone Europe/Berlin.

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

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

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

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• [ ] If you want to rebase/retry this PR, click this checkbox.

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