bugfixes:
- Fix lambda_policy updates when principal is an account number. Backport of
  https://github.com/ansible/ansible/pull/44871
- Support key names that contain spaces in ec2_metadata_facts module.
  https://github.com/ansible/ansible/pull/45313
- Fix ec2_group support for multi-account and peered VPC security groups.
  Reported in https://github.com/ansible/ansible/issue/44788 and fixed in
  https://github.com/ansible/ansible/pull/45296
- Fix s3_lifecycle module backwards compatibility without providing prefix.
  Blank prefixes regression was introduced in boto3 rewrite.
  https://github.com/ansible/ansible/pull/45318
- Fix ecs_taskdefinition handling of changed role_arn. If the task role in a
  ECS task definition changes ansible should create a new revsion of the task
  definition. https://github.com/ansible/ansible/pull/45317
- Fix health check parameter handling in elb_target_group per
  https://github.com/ansible/ansible/issues/43244 about health_check_port.
  Fixed in https://github.com/ansible/ansible/pull/45314
- Remove spurious `changed=True` returns when ec2_group module is used with
  numeric ports. https://github.com/ansible/ansible/pull/45240
- Add argspec to aws_application_scaling_policy module to handle metric
  specifications, scaling cooldowns, and target values.
  https://github.com/ansible/ansible/pull/45235