Update aws_az_info.py (#1795) (#1797)

[PR #1795/d7fae9dd backport][stable-6] aws_az_info - add example of filtering by state

This is a backport of PR #1795 as merged into main (d7fae9d).
SUMMARY
You can filter availability zones based on their state, such as "available," "unavailable," or "modifying."
ISSUE TYPE


Docs Pull Request

COMPONENT NAME
amazon.aws.aws_az_info:

Reviewed-by: Mark Chappell

plugins/modules/aws_az_info.py

@@ -39,6 +39,12 @@
   amazon.aws.aws_az_info:
     filters:
       zone-name: eu-west-1a
+
+- name: Gather information in a availability zones based on their state, such as "available"
+  amazon.aws.aws_az_info:
+    region: us-east-1
+    filters:
+      state: available
 """
 
 RETURN = r"""