Bump actions/download-artifact from 5 to 7 (#361)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5 to 7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '7'
  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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y xorg-dev mesa-utils xvfb libgl1 freeglut3-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxext-dev
       - uses: actions/checkout@v5
       - name: Download all workflow run artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v7
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'