chore(): update opensource chart to alpha 16 (#179)

Author: EZ4BRUCE

charts/mo-ob-opensource/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: mo-ob-opensource
 description: mo-ob-opensource's Helm chart for Kubernetes
 type: application
-version: 1.0.0-alpha.15
+version: 1.0.0-alpha.16
 appVersion: 0.9.0
 dependencies:
 - condition: kube-prometheus-stack.enabled