Merge pull request sgodwincs#27 from sgodwincs/dependabot/github_actions/actions/upload-artifact-4

Bump actions/upload-artifact from 3 to 4

Author: sgodwincs

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
       - name: Run mutant tests
         run: cargo mutants --jobs ${{ steps.cpu-cores.outputs.count }} -- --all-features
       - name: Archive results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: mutation-report