Bump actions/upload-artifact from 1 to 3

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 1 to 3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v1...v3)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/CI.yml

@@ -36,7 +36,7 @@ jobs:
     - name: Run acceptance tests
       run: |
         python atest/run.py
-    - uses: actions/upload-artifact@v1
+    - uses: actions/upload-artifact@v3
       if: ${{ always() }}
       with:
         name: atest_results