Update GitHub Action workflows to actions/upload-artifact@v6

Author: TimWolla

.github/workflows/push.yml

@@ -391,7 +391,7 @@ jobs:
             ${{ github.sha }} \
             $(git merge-base ${{ github.event.pull_request.base.sha }} ${{ github.sha }}) \
             > $GITHUB_STEP_SUMMARY
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: profiles
           path: ${{ github.workspace }}/benchmark/profiles