update CHANGELOG for 2.2.2 release

amazon-connect / amazon-connect-chatjs

Amazon Connect ChatJS - a browser-based contact center integration API for Chat on the Agent and Customer side.

Apache License 2.0

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Closed spenlep-amzn closed 7 months ago

spenlep-amzn commented 7 months ago

Issue #, if available:

Description of changes: update CHANGELOG for 2.2.2 release

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