Feature 11070: upgrade version of MongoDB subchart in OSM helm chart

Change-Id: Ie715cd79814291e96ce79c15a6842c175b6bb563
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/helm/osm/Chart.yaml b/installers/helm/osm/Chart.yaml
index 879eee9..8e26154 100644
--- a/installers/helm/osm/Chart.yaml
+++ b/installers/helm/osm/Chart.yaml
@@ -28,7 +28,7 @@
   condition: mysql.enabled
 - name: mongodb
   repository: "https://charts.bitnami.com/bitnami"
-  version: "13.9.4"
+  version: "18.1.9"
   condition: mongodb.enabled
 - name: kafka
   repository: "https://charts.bitnami.com/bitnami"
diff --git a/installers/helm/osm/values.yaml b/installers/helm/osm/values.yaml
index 6749f8f..cc54341 100644
--- a/installers/helm/osm/values.yaml
+++ b/installers/helm/osm/values.yaml
@@ -349,10 +349,6 @@
 
 mongodb:
   enabled: true
-  image:
-    registry: docker.io
-    repository: bitnamilegacy/mongodb
-    tag: 6.0.5-debian-11-r4
   fullnameOverride: "mongodb-k8s"
   replicaCount: 1
   service: