Extending timeout to 60 minuts to always get the final logs on the scale pipeline

Change-Id: I40dbd72db0fddd09e9d76a599562dafb367c9d79
diff --git a/jjb/pipeline/voltha-scale-test.groovy b/jjb/pipeline/voltha-scale-test.groovy
index bb4a8f0..7e4a2c4 100644
--- a/jjb/pipeline/voltha-scale-test.groovy
+++ b/jjb/pipeline/voltha-scale-test.groovy
@@ -21,7 +21,7 @@
     label "${params.buildNode}"
   }
   options {
-      timeout(time: 30, unit: 'MINUTES')
+      timeout(time: 60, unit: 'MINUTES')
   }
   environment {
     JENKINS_NODE_COOKIE="dontKillMe" // do not kill processes after the build is done