chore(helm): update image docker.io/bitnami/wordpress digest to e4a9bf6 (#28291)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[docker.io/bitnami/wordpress](https://redirect.github.com/bitnami/containers)
([source](https://redirect.github.com/bitnami/containers/tree/HEAD/bitnami/wordpress))
| digest | `4f4fce0` -> `e4a9bf6` |

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charts/stable/wordpress/Chart.yaml

@@ -40,4 +40,4 @@ sources:
   - https://hub.docker.com/r/bitnami/wordpress
   - https://www.wordpress.org
 type: application
-version: 9.7.6
+version: 9.7.7

charts/stable/wordpress/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: docker.io/bitnami/wordpress
   pullPolicy: IfNotPresent
-  tag: 6.6.2@sha256:4f4fce0c1d25379f249f9033155a241edb035343f449f639a6e63f815f28364a
+  tag: 6.6.2@sha256:e4a9bf6b492d304a1df8d442d63a94826a723e8ac11dcae2340d14c86c01f699
 securityContext:
   container:
     readOnlyRootFilesystem: false