chore(helm): update image docker.io/bitnamisecure/mongodb digest to 5b1213a (#41093)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/bitnamisecure/mongodb | digest | `3a822a2` -> `5b1213a` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MS44Mi4xMCIsInVwZGF0ZWRJblZlciI6IjQxLjgyLjEwIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInR5cGUvZGlnZXN0Il19-->

charts/stable/mongodb/Chart.yaml

@@ -41,5 +41,5 @@ sources:
   - https://hub.docker.com/r/bitnamisecure/mongodb
   - https://www.mongodb.com
 type: application
-version: 16.12.1
+version: 16.12.2
 

charts/stable/mongodb/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: docker.io/bitnamisecure/mongodb
   pullPolicy: IfNotPresent
-  tag: latest@sha256:3a822a270ebc55bc49cac61afebce3ede0c68eb9b08b1e9d4b2d57ad29f78997
+  tag: latest@sha256:5b1213a55dc73a64c351cc3d811b2e6b8e66a0c161112c0c644d733a19c7b498
 
 workload:
   main: