[TRTLLM-7169][infra] Fix Slurm multi-node test showing "Submit Test Results" in the test name

jenkins/L0_Test.groovy

@@ -131,11 +131,13 @@ def uploadResults(def pipeline, SlurmCluster cluster, String nodeName, String st
                     "results-${stageName}.tar.gz",
                     "${UPLOAD_PATH}/test-results/"
                 )
-                junit(testResults: "${stageName}/results*.xml")
             } else {
                 println("No results xml to submit")
             }
         }
+        if (downloadSucceed) {
+            junit(testResults: "${stageName}/results*.xml")
+        }
     }
 }