CI: RefDebug: Fix reference to testsuite URL

Change-Id: I0ee41d95a87f0d97b01f2757012b846bcfe6443d

tests/CI/ref_debug.jenkinsfile

@@ -65,7 +65,7 @@ pipeline {
 						def groupName = testGroup.name
 						def groupDir = testGroup.dir
 						def groupTestcmd = testGroup.testcmd
-						def testsuiteUrl = env.GIT_URL.replaceAll(/\/[^\/]+$/, "/1testsuite")
+						def testsuiteUrl = env.GIT_URL.replaceAll(/\/[^\/]+$/, "/testsuite")
 
 						parallelTasks[groupName] = {
 							stage (groupName) {