debug and attempted fix

.github/workflows/auto-merge-dependabot-prs.yml

@@ -54,6 +54,7 @@ jobs:
               run_id: context.payload.workflow_run.id,
             });
             console.log("download artifact: got allArtifacts")
+            console.log("download artifact: allArtifacts: ", allArtifacts)
             let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
               return artifact.name == "pr_number"
             })[0];

.github/workflows/tests.yml

@@ -314,7 +314,11 @@ jobs:
       - uses: actions/upload-artifact@v3
         with:
           name: pr_number
-          path: pr/
+          # at https://github.com/sartography/spiff-arena/actions/runs/7757308061/job/21156982087, for example,
+          # it said: "Warning: No files were found with the provided path: pr", so assuming this is running
+          # from spiff-arena root rather than the default working-directory we specified, and therefore
+          # trying to explicitly add spiffworkflow-backend to path
+          path: spiffworkflow-backend/pr/
 
   tests-frontend:
     runs-on: ubuntu-latest