chore(deps): update helm release memcached to v8

Author: renovate[bot]

charts/librenms/Chart.yaml

@@ -28,7 +28,7 @@ dependencies:
     condition: mysql.install
   - name: memcached
     repository: https://charts.bitnami.com/bitnami
-    version: 6.14.0
+    version: 8.2.3
     condition: memcached.install
     tags:
       - distributed-poller