chore(deps): update actions/download-artifact action to v4

[anaconda-renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/download-artifact	action	major	v2 -> v4

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Release Notes

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

### [`v4`](https://togithub.com/actions/download-artifact/compare/v3...v4) [Compare Source](https://togithub.com/actions/download-artifact/compare/v3...v4) ### [`v3`](https://togithub.com/actions/download-artifact/compare/v2...v3) [Compare Source](https://togithub.com/actions/download-artifact/compare/v2...v3)

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Configuration

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This PR has been generated by Renovate Bot.