aws-config 0.51.0

# IMPORTANT: Types from `aws-sdk-*` crates MUST NOT be allowed to be
# exposed in `aws-config`'s public API. Otherwise, `aws-config` will
# require manual version bumping every time an automated version bump
# to the exposed SDK crates happens.
allowed_external_types = [
   "aws_smithy_async::rt::sleep::AsyncSleep",
   "aws_smithy_client::bounds::SmithyConnector",
   "aws_smithy_client::erase::DynConnector",
   "aws_smithy_client::erase::boxclone::BoxCloneService",
   "aws_smithy_client::http_connector::HttpConnector",
   "aws_smithy_client::http_connector::ConnectorSettings",
   "aws_smithy_http::body::SdkBody",
   "aws_smithy_http::result::SdkError",
   "aws_smithy_types::retry",
   "aws_smithy_types::retry::*",
   "aws_smithy_types::timeout",
   "aws_smithy_types::timeout::config::TimeoutConfig",
   "aws_smithy_types::timeout::error::ConfigError",
   "aws_types::*",
   "http::response::Response",
   "http::uri::Uri",
   "tower_service::Service",

   # TODO(https://github.com/awslabs/smithy-rs/issues/1193): Decide if `InvalidUri` should be exposed
   "http::uri::InvalidUri",

   # TODO(https://github.com/awslabs/smithy-rs/issues/1193): Decide if the following should be exposed
   "hyper::client::connect::Connection",
   "tokio::io::async_read::AsyncRead",
   "tokio::io::async_write::AsyncWrite",
]