Bump actions/upload-artifact@v4 following blocking deprecation.

[kylorhall-atlassian]

What is this change?

Bumps actions/upload-artifcat to version 4 following https://github.com/actions/upload-artifact/blob/main/docs/MIGRATION.md (eg. no changes expected)

All builds are failing due to a blocking upstream change: https://github.com/atlassian-labs/compiled/actions/runs/13124206809/job/36617003663?pr=1792

[changeset-bot]

⚠️ No Changeset found

Latest commit: 5bfc0d7

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[dddlr]

might need include-hidden-files: true, not sure
https://github.com/actions/upload-artifact/blob/main/docs/MIGRATION.md#hidden-files