PTCI-3293: Update etcd to Bitnami 3.6.4-debian-12-r4 (legacy)

- Updated values.yaml: docker.io/bitnami/etcd:3.6.4-debian-12-r4
- Updated values-production.yaml: docker.io/bitnami/etcd:3.6.4-debian-12-r4
- Updated Chart.lock with helm dependency update

Note: Bitnami has removed most public bitnami/* images from Docker Hub,
including bitnami/etcd. That's why every tag you try returns not found.
Using legacy images that are still available on Docker Hub.

Author: vbuddhavarapu-infoblox

helm-charts/etcd/Chart.lock

@@ -2,5 +2,5 @@ dependencies:
 - name: common
   repository: https://charts.bitnami.com/bitnami
   version: 2.31.4
-digest: sha256:98cc992cb269f0b3f8f87c4bf933c1c0991b2d639f79e0bf62d1f35926efeb3f
-generated: "2026-01-07T15:30:00+05:30"
+digest: sha256:2fe2879aabac54ba43811c5f387b4633f5809d2684c99205614db3b4f8e2ea49
+generated: "2026-01-07T16:49:01.432017+05:30"

helm-charts/etcd/values-production.yaml

@@ -8,13 +8,13 @@
 #     - myRegistryKeySecretName
 #   storageClass: myStorageClass
 
-## CoreOS etcd image version
-## ref: https://quay.io/repository/coreos/etcd?tab=tags
+## Bitnami etcd image version (legacy)
+## ref: https://hub.docker.com/r/bitnami/etcd/tags/
 ##
 image:
-  registry: quay.io
-  repository: coreos/etcd
-  tag: v3.6.7
+  registry: docker.io
+  repository: bitnami/etcd
+  tag: 3.6.4-debian-12-r4
   ## Specify a imagePullPolicy
   ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
   ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images

helm-charts/etcd/values.yaml

@@ -8,13 +8,13 @@
 #     - myRegistryKeySecretName
 #   storageClass: myStorageClass
 
-## CoreOS etcd image version
-## ref: https://quay.io/repository/coreos/etcd?tab=tags
+## Bitnami etcd image version (legacy)
+## ref: https://hub.docker.com/r/bitnami/etcd/tags/
 ##
 image:
-  registry: quay.io
-  repository: coreos/etcd
-  tag: v3.6.7
+  registry: docker.io
+  repository: bitnami/etcd
+  tag: 3.6.4-debian-12-r4
   ## Specify a imagePullPolicy
   ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
   ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images