SEBA-536 Update xos-core helm chart to use xos-core 3.0.0 and related services

Change-Id: I0069b72e5c4cabc26940e5fdd9ee73f9da661fad
diff --git a/xos-core/values.yaml b/xos-core/values.yaml
index dfd2c5c..20b3c02 100644
--- a/xos-core/values.yaml
+++ b/xos-core/values.yaml
@@ -28,7 +28,7 @@
 
   xos_tosca:
     repository: 'xosproject/xos-tosca'
-    tag: '1.1.8'
+    tag: '1.2.0'
     pullPolicy: 'Always'
 
   xos_api_tester: