feat(forwarder): allow specifying EventBridge pattern #192

Job	Run time
permission_check	1s
prepare_matrix	13s
test-integration (./modules/forwarder)	2m 30s
test-integration (./modules/logwriter)	2m 28s
test-integration (./modules/config)	25s
test-integration (./modules/stack)	5m 29s
test-integration (./modules/metricstream)	1m 47s
test-integration (./modules/configsubscription)	1m 0s
test-integration (./examples/stack-http)	2m 32s
test-integration (./examples/forwarder-s3-eventbridge-pattern)	2m 31s
test-integration (./examples/simple)	2m 5s
test-integration (./examples/forwarder-sns)	2m 19s
test-integration (./examples/logwriter-manual-subscription)	1m 48s
test-integration (./examples/logwriter-auto-subscription)	2m 26s
test-integration (./examples/forwarder-kms)	2m 18s
test-integration (./examples/stack-filedrop)	2m 30s
cleanup	11s
	32m 33s

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