chore: update actions/setup-node action to v6 (main)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/setup-node	action	major	v4 -> v6

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Release Notes

actions/setup-node (actions/setup-node)

v6

Compare Source

v5

Compare Source

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Configuration

📅 Schedule: Branch creation - At 12:00 AM through 04:59 AM and 10:00 PM through 11:59 PM, Monday through Friday ( * 0-4,22-23 * * 1-5 ), Only on Sunday and Saturday ( * * * * 0,6 ) in timezone UTC, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

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

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

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[renovate]

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