Bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -254,7 +254,7 @@ jobs:
       - name: Fetch sources
         uses: actions/checkout@v4
       - name: Download package
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: dist-packages
           path: dist
@@ -394,7 +394,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Download distribution files
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: dist-packages
           path: dist
@@ -440,7 +440,7 @@ jobs:
       id-token: write
     steps:
       - name: Download distribution files
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: dist-packages
           path: dist