MWAA CLI returns DeprecationWarning in every CLI call

The warnings you see are emitted by airflow when using old names for configurations. Airflow will automatically rename them under the hood, and the configuration will be applied properly, so will not affect any environments adversely. MWAA sometimes falls out of sync with them in version releases as we go through the change logs between versions and might miss a renaming. However, there are incorporated addressing deprecation warnings in 2.6.3 as part of our 2.7.2 release, so the logs should be cleaner after that point.