SEBA-271 update xos-tosca to latest xos libraries

Change-Id: I7f63829515752bb7e557b18c9ccb84d313ec6e16
diff --git a/Dockerfile b/Dockerfile
index 9fa0c46..b791a24 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # docker build -t xosproject/xos-tosca:candidate .
 
 # xosproject/xos-tosca
-FROM xosproject/xos-client:2.1.12
+FROM xosproject/xos-client:2.1.13
 
 # Set environment variables
 ENV CODE_SOURCE .