chore: fix the CI benchmarks posting and also exit gracefully if not …

…even relevant (#6966)

* chore: actually add deltas to the artifact as this changed from v3-v4

* chore: add conditions and check for file existence

.github/workflows/benchmark-post.yml

@@ -18,12 +18,19 @@ jobs:
           workflow: ${{ github.event.workflow.id }}
           workflow_conclusion: success
           name: delta-action-deltas
+          if_no_artifact_found: ignore
           github_token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Check File Existence
+        id: check-file-existence
+        uses: thebinaryfelix/[email protected]
+        with:
+          files: '.delta.*'
       - name: Get PR number
-        if: github.event.workflow_run.event == 'pull_request'
+        if: github.event.workflow_run.event == 'pull_request' && steps.check-file-existence.outputs.exists == 'true'
         id: pr_number
         run: echo "pr_number=$(cat pr_number)" >> $GITHUB_OUTPUT
       - name: Post deltas to GitHub
+        if: steps.check-file-existence.outputs.exists == 'true'
         uses: netlify/delta-action@v4
         with:
           title: '📊 Benchmark results'

.github/workflows/benchmark.yml

@@ -37,6 +37,7 @@ jobs:
         with:
           name: delta-action-deltas
           retention-days: 7
+          include-hidden-files: true
           path: |
             .delta.*
             pr_number