v2.2.0

What's Changed

• Disabled sandbox mode due since API version 202309, Tiktokshop API sandbox is no longer worked, if you want to test please use API test tool here: https://partner.tiktokshop.com/dev/api-testing-tool
• Added support for guzzle 6.5 too

Full Changelog: v2.1.2...v2.2.0