message: fix: silence home directory warning when running on lambda
  * fix: silence home directory warning when running on lambda
  update: SDK_CHANGELOG.md
  * update: expand_home to take env
  update: tests broken by expand_home change
  fix: check correct env in check_is_likely_running_on_a_lambda
  add: test load_config_file_should_not_emit_warning_on_lambda
  * update: check LAMBDA_TASK_ROOT instead of AWS_EXECUTION_ENV
diff: @@ -10,6 +10,7 @@ vNext (Month Day, Year)
  - `SdkError` now includes a variant `TimeoutError` for when a request times out (smithy-rs#885)
  - Improve docs on `aws-smithy-client` (smithy-rs#855)
  - Fix http-body dependency version (smithy-rs#883, aws-sdk-rust#305)
  +- Add a new check so that the SDK doesn't emit an irrelevant `$HOME` dir warning when running in a Lambda (aws-sdk-rust#307)
  **Breaking changes**
  