build(deps): bump actions/download-artifact from 4 to 6 (#8696)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/publish-windows-tarball.yml

@@ -79,7 +79,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Download
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: windows-artifact
           path: ./windows-release
@@ -99,7 +99,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Download
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: windows-artifact
           path: ./windows-release/