Add monitor for event-based reconciliation #2048
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This is a preview-PR, it's not supposed to be merged now.
It's to show a feature that requires crossplane/crossplane#5557 and #2030
Related to #2029
Description of your changes
This PR introduces a monitor of EventBridge events that are published to SQS queue. This allows to keep provider-aws responsive to external changes even when it manages large number of resources that takes long time to reconcile using polling approach. With event based reconciliation polling interval can be increased but resources will still be reconciled when they have updates.
This PR only enables support for ec2.Instance and route53.ResourceRecordSet events. Event based reconciliation is optional and works along with polling.
I have:
make reviewable test
to ensure this PR is ready for review.How has this code been tested