> We have detected that at least one user, group, or role in your account is currently employing the AWSElasticBeanstalkService managed policy. This policy is scheduled for deprecation and will no longer be available for attachment to new IAM users, groups, or roles after April 15, 2021.

> What do I need to do?
The AWSElasticBeanstalkService policy should be replaced with the new versions of this policy: AWSElasticBeanstalkManagedUpdatesCustomerRolePolicy.

gee i wonder what language they use