chore(mongodb): update image docker.io/bitnamisecure/mongodb digest to a8af016 (#43803)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/bitnamisecure/mongodb | digest | `2ccb289` -> `a8af016` |

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charts/stable/mongodb/Chart.yaml

@@ -40,5 +40,5 @@ sources:
   - https://hub.docker.com/r/bitnamisecure/mongodb
   - https://www.mongodb.com
 type: application
-version: 16.14.11
+version: 16.14.12
 

charts/stable/mongodb/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: docker.io/bitnamisecure/mongodb
   pullPolicy: IfNotPresent
-  tag: latest@sha256:2ccb2893126f21189d83a4b44a2cfa3f67bbba05cf0b1c08295527d71ab4a9a4
+  tag: latest@sha256:a8af016c6ae91f640383c983f9bdf959d8007928303326368602bc7cd0238219
 
 workload:
   main: