Update omec-control plane helm chart 1.5.x Release

SPGW crash fix from new control plane charts

Change-Id: I226ae2ba331081c561252caabe5f3340c821670e
diff --git a/sdcore-helm-charts/Chart.yaml b/sdcore-helm-charts/Chart.yaml
index dfc99b9..9274ea4 100644
--- a/sdcore-helm-charts/Chart.yaml
+++ b/sdcore-helm-charts/Chart.yaml
@@ -8,7 +8,7 @@
 description: SD-Core control plane services
 icon: https://guide.opencord.org/logos/cord.svg
 type: application
-version: 0.8.3
+version: 0.8.4
 home: https://opennetworking.org/sd-core/
 maintainers:
   - name: SD-Core Support
@@ -16,7 +16,7 @@
 
 dependencies:
   - name: omec-control-plane
-    version: 0.8.3
+    version: 0.8.4
     repository: https://charts.aetherproject.org
     condition: omec-control-plane.enable4G