Adding build job name to jenkinsfile for test metrics

AutomatedReview/Jenkinsfile

@@ -599,6 +599,8 @@ try {
                         withEnv(GetEnvStringList(envVars)) {
                             timeout(time: envVars['TIMEOUT'], unit: 'MINUTES', activity: true) {
                                 try {
+                                    def build_job_name = build_job.key
+                                    
                                     CreateSetupStage(pipelineName, branchName, platform.key, build_job.key, envVars).call()
 
                                     if(build_job.value.steps) { //this is a pipe with many steps so create all the build stages