Update actions/upload-artifact action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/upload-artifact	action	major	v4 → v6

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Release Notes

actions/upload-artifact (actions/upload-artifact)

v6

Compare Source

v5

Compare Source

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Configuration

📅 Schedule: Branch creation - Between 12:00 AM and 03:59 AM, on day 1 of the month ( * 0-3 1 * * ) (UTC), Automerge - Between 12:00 AM and 03:59 AM, on day 1 of the month ( * 0-3 1 * * ) (UTC).

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

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

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