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] <support@github.com>

.github/workflows/code.yml

@@ -102,7 +102,7 @@ jobs:
           ref: gh-badges
 
       - name: Download badges
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: badges-${{ steps.branch-name.outputs.sanitized_name }}
           path: ${{ steps.branch-name.outputs.sanitized_name }}
@@ -174,7 +174,7 @@ jobs:
         run: echo IMAGE_REPOSITORY=ghcr.io/$(tr '[:upper:]' '[:lower:]' <<< "${{ github.repository }}") >> $GITHUB_ENV
 
       - name: Download wheel and lockfiles
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           path: .devcontainer
 
@@ -221,7 +221,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
 
       - name: Fixup blank lockfiles
         # Github release artifacts can't be blank