chore(deps): update github artifact actions (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/download-artifact	action	major	v6 -> v7
actions/upload-artifact	action	major	v5 -> v6

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Release Notes

actions/download-artifact (actions/download-artifact)

v7

Compare Source

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

v6

Compare Source

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Configuration

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

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

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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