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
"""
    Converts cross-package dependencies to a markdown table
    :param cross_package_dependencies: list of cross-package dependencies
    :param base_url: base url to use for links
    :return: markdown-formatted table
    """
    from tabulate import tabulate
    headers = ["Dependent package", "Extra"]
    table_data = []
    for dependency in cross_package_dependencies:
        pip_package_name = f"apache-airflow-backport-providers-{dependency.replace('.','-')}"
        url_suffix = f"{dependency.replace('.','/')}"
        table_data.append((f"[{pip_package_name}]({base_url}{url_suffix})", dependency))
    return tabulate(table_data, headers=headers, tablefmt="pipe")
LICENCE = """<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at
   http://www.apache.org/licenses/LICENSE-2.0
 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an