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/build_and_test.yml

@@ -87,7 +87,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - name: Download all wheels
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         path: wheelhouse
     - name: Put them all in the dist folder
@@ -115,7 +115,7 @@ jobs:
       with:
         python-version: '3.10'
     - name: Download all wheels
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         path: wheelhouse
     - name: Install pip, wheel