feat: add replicator bucket event

[vasco-santos]

Part of storacha/w3filecoin-infra#12

Adds event to Event Bridge on replicated file. This replicate event is generic to not be tied with single requirements of w3filecoin (i.e. event for replicated CARs). This way, everything that is replicated will trigger an event with the file key replicated and the URL where it lives. Event consumers can filter the events they care about using filters like key suffix .car or the destination name

Needed ENV vars were set to have knowledge of public URLs of each bucket used for replication purposes

[seed-deploy]

View stack outputs

• pr199-w3infra-CarparkStack

  Name	Value
  BucketName	carpark-pr199-0
  Region	us-east-2

• pr199-w3infra-SatnavStack

  Name	Value
  BucketName	satnav-pr199-0
  Region	us-east-2

• pr199-w3infra-UploadApiStack

  Name	Value
  ApiEndpoint	https://2kmjsydp5f.execute-api.us-east-2.amazonaws.com
  CustomDomain	https://pr199.up.web3.storage

• pr199-w3infra-BusStack

• pr199-w3infra-ReplicatorStack

• pr199-w3infra-UcanInvocationStack

• pr199-w3infra-UploadDbStack

[vasco-santos]

This should not be using bucket event anymore, but via HTTP Call on #214