[UIMA-6465] Check out code into subfolder of Jenkins workspace

- Disable default checkout
diff --git a/vars/defaultPipeline.groovy b/vars/defaultPipeline.groovy
index 0ace24b..c33f2dd 100644
--- a/vars/defaultPipeline.groovy
+++ b/vars/defaultPipeline.groovy
@@ -66,7 +66,11 @@
           agent {
             label labelValue ? "(${labelValue}) && ${PLATFORM}" : "${PLATFORM}"
           }
-           
+          
+          options {
+            skipDefaultCheckout()
+          }
+      
           stages {
             stage("Checkout code") {
               steps {