[AWS] Migrate EC2 metrics dashboard to lenses (#5626)

* add lenses

* bump package version

* fix layout

Author: gpop63

packages/aws/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "1.40.8"
+  changes:
+    - description: Migrate EC2 metrics dashboard visualizations to lenses.
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/5626
 - version: "1.40.7"
   changes:
     - description: Add AWS Firewall metrics dashboard input control groups.