Updated jenkins approved scripts

Change-Id: I74e86a2c37e93c2c3c3dd15b667b13848ad7dadc
diff --git a/jenkins/client/approved_scripts.yml b/jenkins/client/approved_scripts.yml
index ebacf60..99f2492 100644
--- a/jenkins/client/approved_scripts.yml
+++ b/jenkins/client/approved_scripts.yml
@@ -126,3 +126,4 @@
         - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods getAt java.lang.Object java.lang.String
         - method java.io.File listFiles
         - method java.lang.String concat java.lang.String
+        - method org.jenkinsci.plugins.workflow.steps.FlowInterruptedException getCauses