Update HSS image to the image with Sub Delete sup

Change-Id: Idd36619e4d329c9c80a197c88b1162d3baa13562
diff --git a/omec/omec-control-plane/Chart.yaml b/omec/omec-control-plane/Chart.yaml
index d6d5de0..916f262 100644
--- a/omec/omec-control-plane/Chart.yaml
+++ b/omec/omec-control-plane/Chart.yaml
@@ -10,4 +10,4 @@
 name: omec-control-plane
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 0.7.7
+version: 0.7.8