Update XOS core certificate

Change-Id: Ib38b2c3ace87f9200878dcb030a852d7a973d347
diff --git a/xos-core/Chart.yaml b/xos-core/Chart.yaml
index 3c371ca..550b285 100644
--- a/xos-core/Chart.yaml
+++ b/xos-core/Chart.yaml
@@ -18,7 +18,7 @@
 description: XOS - An Extensible Cloud Operating System
 icon: https://guide.opencord.org/logos/xos.svg
 
-version: 4.0.1
+version: 4.0.2
 
 # appVersion is of the xos-core containers.
 # xos-tosca, xos-chameleon, and xos-api-tester are versioned in values.yaml