chore(helm): update image docker.io/bitnami/memcached digest to 438b66b (#29059)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[docker.io/bitnami/memcached](https://redirect.github.com/bitnami/containers)
([source](https://redirect.github.com/bitnami/containers/tree/HEAD/bitnami/memcached))
| digest | `34db8c3` -> `438b66b` |

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charts/stable/memcached/Chart.yaml

@@ -34,4 +34,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/memcached
   - https://hub.docker.com/r/bitnami/memcached
 type: application
-version: 14.2.4
+version: 14.2.5

charts/stable/memcached/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: docker.io/bitnami/memcached
   pullPolicy: IfNotPresent
-  tag: 1.6.32@sha256:34db8c367920cc606b5cc28da65676b79cf88967c59583b6c0bb59d4baaceb2b
+  tag: 1.6.32@sha256:438b66b7fb308c86f2412215549d3a2808177797a493c1ec53ca6441f2284889
 
 includeCommon: true
 service: