Add 'alternative' for EC2_REGION deprecation for non-module plugins (#…

…2185)

SUMMARY
Adds "alternative" key to documentation for deprecated EC2_REGION env variable.
ISSUE TYPE

Docs Pull Request

COMPONENT NAME
plugins/doc_fragments/region.py
ADDITIONAL INFORMATION
Fixes sanity issue:
 ERROR: Found 5 validate-modules issue(s) which need to be resolved:
ERROR: plugins/inventory/aws_ec2.py:0:0: invalid-documentation: DOCUMENTATION.options.region.env.1.deprecated.Any('alternatives', 'alternative', msg=None): required key not provided @ data['options']['region']['env'][1]['deprecated'][Any('alternatives', 'alternative', msg=None)]. Got None
ERROR: plugins/inventory/aws_rds.py:0:0: invalid-documentation: DOCUMENTATION.options.region.env.1.deprecated.Any('alternatives', 'alternative', msg=None): required key not provided @ data['options']['region']['env'][1]['deprecated'][Any('alternatives', 'alternative', msg=None)]. Got None
ERROR: plugins/lookup/aws_account_attribute.py:0:0: invalid-documentation: DOCUMENTATION.options.region.env.1.deprecated.Any('alternatives', 'alternative', msg=None): required key not provided @ data['options']['region']['env'][1]['deprecated'][Any('alternatives', 'alternative', msg=None)]. Got None
ERROR: plugins/lookup/secretsmanager_secret.py:0:0: invalid-documentation: DOCUMENTATION.options.region.env.1.deprecated.Any('alternatives', 'alternative', msg=None): required key not provided @ data['options']['region']['env'][1]['deprecated'][Any('alternatives', 'alternative', msg=None)]. Got None
ERROR: plugins/lookup/ssm_parameter.py:0:0: invalid-documentation: DOCUMENTATION.options.region.env.1.deprecated.Any('alternatives', 'alternative', msg=None): required key not provided @ data['options']['region']['env'][1]['deprecated'][Any('alternatives', 'alternative', msg=None)]. Got None

Reviewed-by: Alina Buzachis

plugins/doc_fragments/region.py

@@ -47,4 +47,5 @@ class ModuleDocFragment:
           removed_at_date: '2024-12-01'
           collection_name: amazon.aws
           why: 'EC2 in the name implied it was limited to EC2 resources, when it is used for all connections'
+          alternatives: AWS_REGION
 """