fix

Signed-off-by: Sayali Gaikawad <[email protected]>

src/jenkins/CreateIntegTestMarkDownTable.groovy

@@ -29,13 +29,13 @@ class CreateIntegTestMarkDownTable {
 |----------|--------------|--------------|----------------------|--------------|
 """
         def tableRows = this.tableData.collect { row ->
-            "| ${row.platform} | ${row.distribution} | ${row.architecture} | ${row.test_report_manifest_yml} | ${row.integ_test_build_url}"
+            "| ${row.platform.toString()} | ${row.distribution.toString()} | ${row.architecture.toString()} | ${row.test_report_manifest_yml.toString()} | ${row.integ_test_build_url.toString()}"
         }.join("\n")
 
         def additionalInformation = """
 \nCheck out test report manifest linked above for steps to reproduce, cluster and integration test failure logs. For additional information checkout the [wiki](https://github.com/opensearch-project/opensearch-build/wiki/Testing-the-Distribution) and [OpenSearch Metrics Dashboard](https://metrics.opensearch.org/_dashboards/app/dashboards#/view/21aad140-49f6-11ef-bbdd-39a9b324a5aa).
 """
-        return (tableHeader + tableRows + additionalInformation).toString()
+        return (tableHeader + tableRows.toString() + additionalInformation).toString()
     }
 
 }