Add support for IP Ranges

[zahiar]

Create a data source that encapsulates Bitbucket Cloud's IP ranges for use in allow-lists.

Resources:

• https://support.atlassian.com/bitbucket-cloud/docs/what-are-the-bitbucket-cloud-ip-addresses-i-should-use-to-configure-my-corporate-firewall/
• https://ip-ranges.atlassian.com