Bump actions/download-artifact from 2 to 3

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v3)

---
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>

Author: dependabot[bot]

.github/workflows/pythonapp.yml

@@ -59,7 +59,7 @@ jobs:
     if: ${{ github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags') }}
     needs: [test]
     steps:
-    - uses: actions/download-artifact@v2
+    - uses: actions/download-artifact@v3
       with:
         name: Packages
         path: dist