feat(container): update image redis to v18.6.0

[bot-blake]

This PR contains the following updates:

Package	Update	Change
redis (source)	minor	18.5.0 -> 18.6.0

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[bot-blake]

--- kubernetes/apps/databases/redis/app Kustomization: flux-system/cluster-apps-redis HelmRelease: databases/redis

+++ kubernetes/apps/databases/redis/app Kustomization: flux-system/cluster-apps-redis HelmRelease: databases/redis

@@ -12,13 +12,13 @@

     spec:
       chart: redis
       sourceRef:
         kind: HelmRepository
         name: bitnami-charts
         namespace: flux-system
-      version: 18.5.0
+      version: 18.6.0
   install:
     remediation:
       retries: 3
   interval: 30m
   timeout: 15m
   uninstall: