chore(helm): update image public.ecr.aws/bitnami/wordpress digest to 326d12f (#33356)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[public.ecr.aws/bitnami/wordpress](https://redirect.github.com/bitnami/containers)
([source](https://redirect.github.com/bitnami/containers/tree/HEAD/bitnami/wordpress))
| digest | `c781f8a` -> `326d12f` |

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charts/stable/wordpress/Chart.yaml

@@ -40,4 +40,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/wordpress
   - https://www.wordpress.org
 type: application
-version: 9.15.3
+version: 9.15.4

charts/stable/wordpress/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: public.ecr.aws/bitnami/wordpress
   pullPolicy: IfNotPresent
-  tag: 6.7.2@sha256:c781f8a24a09ef3cf2474403784539521b0762b09834017f1befd3826919026a
+  tag: 6.7.2@sha256:326d12fa516c2c7e15c0de413606551e6fd1cb61740c26441694a2d8a56bb42f
 securityContext:
   container:
     readOnlyRootFilesystem: false