v2.1

What's Changed

• [MAD-14301|MAD-14474] Upgrade authorizenet library for PHP 8 by @nortoh in #1
• [MAD-14475] return type json serialize by @mclorch in #2
• [MAD-14447] Replace all versions with our fork by @nortoh in #3

New Contributors

• @nortoh made their first contribution in #1
• @mclorch made their first contribution in #2

Full Changelog: 2.0.2...v2.1