chore(deps): update bitnami/memcached docker tag to v1.6.30 (#869)

This PR contains the following updates:

| Package | Update | Change | Pending |
|---|---|---|---|
| [bitnami/memcached](https://github.com/bitnami/containers)
([source](https://github.com/bitnami/containers/tree/HEAD/bitnami/memcached))
| patch | `1.6.29` -> `1.6.30` | `1.6.31` |

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Docker/Both/memcached/docker-compose.yml

@@ -3,7 +3,7 @@
 version: '3.9'
 services:
   memcached:
-    image: bitnami/memcached:1.6.29
+    image: bitnami/memcached:1.6.30
     container_name: memcached
     environment:
       - MEMCACHED_CACHE_SIZE=${MEMCACHED_CACHE_SIZE}