aether-roc-umbrella: releasing 2.0.48 for nginx chart

Change-Id: Id9604f73db16abb4a80dbd6129f50d28f388130d
diff --git a/aether-roc-umbrella/Chart.yaml b/aether-roc-umbrella/Chart.yaml
index 6409d64..dad0741 100644
--- a/aether-roc-umbrella/Chart.yaml
+++ b/aether-roc-umbrella/Chart.yaml
@@ -7,7 +7,7 @@
 description: Aether ROC Umbrella chart to deploy all Aether ROC
 kubeVersion: ">=1.18.0"
 type: application
-version: 2.0.47
+version: 2.0.48
 appVersion: v0.0.0
 keywords:
   - aether
@@ -61,7 +61,7 @@
     alias: sdcore-test-dummy
     condition: import.sdcore-test-dummy.enabled
     repository: https://charts.bitnami.com/bitnami
-    version: 8.9.0
+    version: 12.0.0
   - name: grafana
     condition: import.grafana.enabled
     repository: https://grafana.github.io/helm-charts