build(deps): bump actions/download-artifact from 3 to 4 (#1002)

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

.github/workflows/build.yml

@@ -276,7 +276,7 @@ jobs:
     steps:
       # Will download all artifacts to path
       - name: Download build artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           path: dist
 

.github/workflows/test.yml

@@ -55,7 +55,7 @@ jobs:
       # Will download all artifacts to path
       - name: Download build artifacts
         if: ${{ env.new_version == 'this' }}
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: builds-Linux-py3.9
           path: dist