Bumping up helm chart version for SD-Core 1.2 work

Change-Id: Ia1458f8d1e8b9e33bdd260538f15b424b8672c3c
diff --git a/5g-ran-sim/Chart.yaml b/5g-ran-sim/Chart.yaml
index 14e0770..6359870 100644
--- a/5g-ran-sim/Chart.yaml
+++ b/5g-ran-sim/Chart.yaml
@@ -8,4 +8,4 @@
 name: 5g-ran-sim
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 0.4.15
+version: 0.5.0