Bump actions/download-artifact from 2.0.9 to 3.0.2

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2.0.9 to 3.0.2.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2.0.9...v3.0.2)

---
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/tests.yml

@@ -119,7 +119,7 @@ jobs:
           nox --version
 
       - name: Download coverage data
-        uses: actions/download-artifact@v2.0.9
+        uses: actions/download-artifact@v3.0.2
         with:
           name: coverage-data