[stable/mongodb] Change pullPolicy because immutable tag is used in exporter (#19082)

Signed-off-by: Carlos Rodriguez Hernandez <crhernandez@bitnami.com>

stable/mongodb/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: mongodb
-version: 7.4.5
+version: 7.4.6
 appVersion: 4.0.13
 description: NoSQL document-oriented database that stores JSON-like documents with dynamic schemas, simplifying the integration of data in content-driven applications.
 keywords:

stable/mongodb/values-production.yaml

@@ -393,7 +393,7 @@ metrics:
     registry: docker.io
     repository: bitnami/mongodb-exporter
     tag: 0.10.0-debian-9-r49
-    pullPolicy: Always
+    pullPolicy: IfNotPresent
     ## Optionally specify an array of imagePullSecrets.
     ## Secrets must be manually created in the namespace.
     ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/

stable/mongodb/values.yaml

@@ -395,7 +395,7 @@ metrics:
     registry: docker.io
     repository: bitnami/mongodb-exporter
     tag: 0.10.0-debian-9-r49
-    pullPolicy: Always
+    pullPolicy: IfNotPresent
     ## Optionally specify an array of imagePullSecrets.
     ## Secrets must be manually created in the namespace.
     ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/