Update benchmark.yml

.github/workflows/benchmark.yml

@@ -54,9 +54,14 @@ jobs:
       - name: Create visz from benchmark results!
         run: python tests/benchmark_visz.py
 
-      - name: Commit benchmark png
-        uses: EndBug/add-and-commit@v9
+      - name: Upload benchmark png as artifact
+        uses: actions/upload-artifact@v3
         with:
-          default_author: github_actions
-          message: "generate benchmark chart"
-          add: "tests/benchmark_chart.png --force"
+          name: benchmark-artifact
+          path: tests/benchmark_chart.png
+
+      - name: Mention artifact in pull request
+        run: |
+          echo "You can download the benchmark chart artifact from this workflow run: [Artifact Link](<artifact-url>)"
+        env:
+          ARTIFACT_URL: ${{ steps.upload_artifact.outputs.artifact_url }}