The amazon and google providers don't include necessary datafiles in them.

They were previously included in the sdist via MANIFEST.in (see https://github.com/apache/airflow/pull/12196) and in the bdist via include_package_data from the top level setup.py

Both of these are currently missing.

I've put this against 2.0.0-beta1, it _could_ be changed separately as providers are separate releases.
dev/provider_packages/prepare_provider_packages.py
"""
    Returns name of the template
    :param backport_packages: whether to generate backport packages
    :param template_suffix: suffix to add
    :return template name
    """
    return (
        BACKPORT_PROVIDER_TEMPLATE_PREFIX if backport_packages else PROVIDER_TEMPLATE_PREFIX
    ) + template_suffix
def prepare_readme_and_changes_files(
    backport_packages,
    context,
    current_release_version,
    entity_summaries,
    provider_package_id,
    provider_package_path,
):
    changes_template_name = get_template_name(backport_packages, "CHANGES")
    current_changes = render_template(template_name=changes_template_name, context=context, extension='.md')
    store_current_changes(
        provider_package_path=provider_package_path,
        current_release_version=current_release_version,
        current_changes=current_changes,
        backport_packages=backport_packages,
    )
    context['ENTITIES'] = entity_summaries
    context['ENTITY_NAMES'] = ENTITY_NAMES
    all_releases = get_all_releases(provider_package_path, backport_packages=backport_packages)