Updated service to use new XOS core version: 2.1.25

Change-Id: Icb9ba5b96fd3ee523f9261e3e0a78c07889a1eb8
diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index ffcaa88..5a9796a 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -16,7 +16,7 @@
 
 # xosproject/att-workflow-driver-synchronizer
 
-FROM xosproject/xos-synchronizer-base:2.1.24
+FROM xosproject/xos-synchronizer-base:2.1.25
 
 COPY xos/synchronizer /opt/xos/synchronizers/att-workflow-driver
 COPY VERSION /opt/xos/synchronizers/att-workflow-driver/