chore(helm): update chart memcached 16.8.1 → 16.9.0 (#40460)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [memcached](https://truecharts.org/charts/stable/memcached)
([source](https://redirect.github.com/bitnami/bitnami-docker-memcached))
| minor | `16.8.1` -> `16.9.0` |

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charts/stable/gitea/Chart.yaml

@@ -21,7 +21,7 @@ dependencies:
     tags: []
     import-values: []
   - name: memcached
-    version: 16.8.1
+    version: 16.9.0
     repository: oci://oci.trueforge.org/truecharts
     condition: memcached.enabled
     alias: ""
@@ -51,5 +51,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/gitea
   - https://hub.docker.com/r/gitea/gitea
 type: application
-version: 22.15.0
+version: 22.16.0