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
package_list = sys.argv[2:]
        print()
        update_release_notes_for_packages(
            package_list,
            release_version=release_ver,
            version_suffix=suffix,
            backport_packages=BACKPORT_PACKAGES,
        )
        sys.exit(0)
    elif sys.argv[1] == GENERATE_SETUP_FILES:
        print()
        print()
        print("Generate setup files")
        print()
        provider = sys.argv[2]
        update_generated_files_for_package(
            provider, "", suffix, [], BACKPORT_PACKAGES, update_release_notes=False, update_setup=True
        )
        sys.exit(0)
    _provider_package = sys.argv[1]
    verify_provider_package(_provider_package)
    del sys.argv[1]
    print(f"Building backport package: {_provider_package}")
    copy_readme_and_changelog(_provider_package, BACKPORT_PACKAGES)
    command = ["python3", "setup.py", "--version-suffix-for-pypi", suffix, "sdist", "bdist_wheel"]
    print(f"Executing command: '{command}'")
    subprocess.check_call(
        command,
    )