fix: change memcached repository to bitnamilegacy

Bitnami is deprecating and removing versioned image tags from their
main Docker Hub repository as of August 28th, 2025. Bitnami has
moved most versioned images (such as 1.6.38-debian-12-r7) to a
legacy repository called bitnamilegacy which is no longer
updated or supported.

Author: mfencik

components/openstack/memcached-values.yaml

@@ -6,6 +6,15 @@ commonAnnotations:
 
 metrics:
   enabled: true
+  image:
+    repository: bitnamilegacy/memcached-exporter
+
+global:
+  security:
+    allowInsecureImages: true
+
+image:
+  repository: bitnamilegacy/memcached
 
 # (nicholas.kuechler) The default memcached presents are 'nano' size which
 # are a bit too small for OpenStack usage and generates 'CPUThrottlingHigh'