Add AWS Event Bridge notification type

[jphilaine]

Add missing feature to support AmazonEventBridge notification type.

See issue #297.

[github-actions]

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I have read the CLA Document and I hereby sign the CLA

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1 out of 2 committers have signed the CLA.
✅ (atoulme)[https://github.com/atoulme]
❌ @jphilaine
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