fix: update ETCD image (#3457)

Signed-off-by: Julien Mancuso <jmancuso@nvidia.com>

examples/deployments/ECS/README.md

@@ -37,7 +37,7 @@ Follow the [AWS documentation on creating the task execution IAM role](https://d
 ### 3.2 Task Definition Configuration
 1. ETCD container
 - Container name use `etcd`
-- Image URL is `bitnami/etcd` and **Yes** for Essential container
+- Image URL is `bitnamilegacy/etcd` and **Yes** for Essential container
 - Container port
 
 |Container port|Protocol|Port name| App protocol|

examples/deployments/ECS/task_definition_etcd_nats.json

@@ -3,7 +3,7 @@
     "containerDefinitions": [
         {
             "name": "etcd",
-            "image": "bitnami/etcd",
+            "image": "bitnamilegacy/etcd",
             "cpu": 0,
             "portMappings": [
                 {