feat(dataSources): Add Support for EventBridge DataSource

[bboure]

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-datasource-eventbridgeconfig.html

[github-actions[bot]]

:tada: This PR is included in version 2.2.0 :tada:

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• npm package (@latest dist-tag)
• GitHub release

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