build(deps): bump actions/upload-artifact from 2.3.0 to 2.3.1

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2.3.0 to 2.3.1.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2.3.0...v2.3.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/coverage.yml

@@ -41,7 +41,7 @@ jobs:
         run: make coverage
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v2.3.0
+        uses: actions/upload-artifact@v2.3.1
         with:
           name: coverage
           path: profile.out