[Infra][TRTLLM-6013] - Fix stage name in single stage test rerun report (#5672)

Signed-off-by: Yiqing Yan <yiqingy@nvidia.com>
Co-authored-by: Yanchao Lu <yanchaol@nvidia.com>

jenkins/L0_MergeRequest.groovy

@@ -771,7 +771,7 @@ def collectTestResults(pipeline, testFilter)
             trtllm_utils.llmExecStepWithRetry(pipeline, script: "apk add py3-pip")
             trtllm_utils.llmExecStepWithRetry(pipeline, script: "pip3 config set global.break-system-packages true")
             sh """
-                python3 llm/tests/integration/defs/test_rerun.py \
+                python3 llm/jenkins/test_rerun.py \
                 generate_rerun_report \
                 --output-file=rerun/rerun_report.xml \
                 --input-files=${inputfiles}

jenkins/L0_Test.groovy

@@ -1111,7 +1111,7 @@ def rerunFailedTests(stageName, llmSrc, testCmdLine) {
     // Generate rerun test lists
     def failSignaturesList = trtllm_utils.getFailSignaturesList().join(",")
     sh """
-        python3 ${llmSrc}/tests/integration/defs/test_rerun.py \
+        python3 ${llmSrc}/jenkins/test_rerun.py \
         generate_rerun_tests_list \
         --output-dir=${WORKSPACE}/${stageName}/ \
         --input-file=${WORKSPACE}/${stageName}/results.xml \
@@ -1184,12 +1184,15 @@ def rerunFailedTests(stageName, llmSrc, testCmdLine) {
         }
     }
 
-    // generate rerun report
+    // Specify the stage name correctly
+    sh "cd ${WORKSPACE}/${stageName} && sed -i 's/testsuite name=\"pytest\"/testsuite name=\"${stageName}\"/g' *.xml || true"
+
+    // Generate rerun report
     inputFiles = ["${WORKSPACE}/${stageName}/results.xml",
                   "${WORKSPACE}/${stageName}/rerun_results_1.xml",
                   "${WORKSPACE}/${stageName}/rerun_results_2.xml"]
     sh """
-        python3 ${llmSrc}/tests/integration/defs/test_rerun.py \
+        python3 ${llmSrc}/jenkins/test_rerun.py \
         generate_rerun_report \
         --output-file=${WORKSPACE}/${stageName}/rerun_results.xml \
         --input-files=${inputFiles.join(",")}
@@ -1197,7 +1200,7 @@ def rerunFailedTests(stageName, llmSrc, testCmdLine) {
 
     // Update original results xml file with rerun results xml files for junit
     sh """
-        python3 ${llmSrc}/tests/integration/defs/test_rerun.py \
+        python3 ${llmSrc}/jenkins/test_rerun.py \
         merge_junit_xmls \
         --output-file=${WORKSPACE}/${stageName}/results.xml \
         --input-files=${inputFiles.join(",")} \