[O11y][ETCD] Lens migration for visualizations to Kibana version 8.3.0 (#5545)

* Lens migration of etcd to 8.3.0 * Update changelog

Author: rajvi-patel-22

packages/etcd/changelog.yml

@@ -1,3 +1,9 @@
+# newer versions go on top
+- version: "0.4.0"
+ changes:
+ - description: Migrate visualizations to lens.
+ type: enhancement
+ link: https://github.com/elastic/integrations/pull/5545
 - version: "0.3.1"
  changes:
  - description: Added categories and/or subcategories.
@@ -18,7 +24,6 @@
  - description: Update to ECS 8.0
  type: enhancement
  link: https://github.com/elastic/integrations/pull/2486
-# newer versions go on top
 - version: "0.1.0"
  changes:
  - description: Add metrics dashboard