chore(mariadb): update image docker.io/bitnamisecure/mariadb digest to dd4891c (#49690)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/bitnamisecure/mariadb | digest | `967e3ef` → `dd4891c` |

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charts/stable/mariadb/Chart.yaml

@@ -40,5 +40,5 @@ sources:
   - https://hub.docker.com/r/bitnamisecure/mariadb
   - https://mariadb.org
 type: application
-version: 18.5.0
+version: 18.5.1
 

charts/stable/mariadb/values.yaml

@@ -2,7 +2,7 @@
 image:
   repository: docker.io/bitnamisecure/mariadb
   pullPolicy: IfNotPresent
-  tag: latest@sha256:967e3ef934af001f3b6bb427921ea5fb1414d8dea36055a16cb5d4a06bf7e66a
+  tag: latest@sha256:dd4891c5f0f7185b66932699e7ec447a41110153ff563c09be0f3d362f14c6a7
 workload:
   main:
     podSpec: