chore(helm): update image public.ecr.aws/bitnami/memcached digest to 59c6cef (#33387)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[public.ecr.aws/bitnami/memcached](https://redirect.github.com/bitnami/containers)
([source](https://redirect.github.com/bitnami/containers/tree/HEAD/bitnami/memcached))
| digest | `8182e4b` -> `59c6cef` |

---

> [!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:eyJjcmVhdGVkSW5WZXIiOiIzOS4yMDIuMCIsInVwZGF0ZWRJblZlciI6IjM5LjIwMi4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInR5cGUvZGlnZXN0Il19-->

charts/stable/memcached/Chart.yaml

@@ -34,4 +34,4 @@ sources:
   - https://github.com/bitnami/bitnami-docker-memcached
   - https://github.com/truecharts/charts/tree/master/charts/stable/memcached
 type: application
-version: 14.5.6
+version: 14.5.7

charts/stable/memcached/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: public.ecr.aws/bitnami/memcached
   pullPolicy: IfNotPresent
-  tag: 1.6.37@sha256:8182e4be563fd48b2a78380198a56989f4bc2a1c1d5738d34b8cdffb29625359
+  tag: 1.6.37@sha256:59c6cefcb10da48bdab7679f2eacafb6647fc23133a1c72c69c52a3edcfc8b18
 
 includeCommon: true
 service: