Bump actions/download-artifact from 3.0.2 to 4.1.8 (#30395)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3.0.2 to 4.1.8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](9bc31d5ccc...fa0a91b85d)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/cd-pipeline.yml

@@ -91,7 +91,7 @@ jobs:
       - vib-publish
     name: Update charts index
     steps:
-      - uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a
+      - uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
         with:
           path: ~/artifacts
       # If we perform a checkout of the main branch, we will find conflicts with the submodules