feat: add helper module to determine `code_uri` #176

Job	Run time
permission_check	1s
prepare_matrix	11s
test-integration (./modules/forwarder)	2m 31s
test-integration (./modules/logwriter)	2m 58s
test-integration (./modules/config)	27s
test-integration (./modules/stack)	4m 43s
test-integration (./modules/metricstream)	2m 9s
test-integration (./modules/configsubscription)	58s
test-integration (./examples/stack-http)	2m 26s
test-integration (./examples/simple)	1m 32s
test-integration (./examples/forwarder-sns)	2m 17s
test-integration (./examples/logwriter-manual-subscription)	1m 37s
test-integration (./examples/logwriter-auto-subscription)	3m 6s
test-integration (./examples/forwarder-kms)	2m 20s
test-integration (./examples/stack-filedrop)	2m 37s
cleanup	9s
	30m 2s

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