Backport/2.6/44902 (#44921)

* Update lightsail.py

(cherry picked from commit dc8307a063)

* correct example code for AWS lightsail

* Move changelog to correct location

* Update CHANGELOG-v2.6.rst

changelogs/fragments/aws_lightsail_documentation_fix.yml

@@ -0,0 +1,3 @@
+---
+bugfixes:
+- fix  example code for AWS lightsail documentation

lib/ansible/modules/cloud/amazon/lightsail.py

@@ -82,7 +82,7 @@ EXAMPLES = '''
     msg: "Name is {{ my_instance.instance.name }}"
 
 - debug:
-    msg: "IP is {{ my_instance.instance.publicIpAddress }}"
+    msg: "IP is {{ my_instance.instance.public_ip_address }}"
 
 # Delete an instance if present
 - lightsail: