feat: emit inferred aws.alb span for ALB-triggered Lambdas #872

Job	Run time
build	1m 8s
system-tests / Get parameters / Get parameters	16s
system-tests / Build end-to-end (alb)	54s
system-tests / Build end-to-end (apigw-rest)	56s
system-tests / Build end-to-end (alb-multi)	55s
system-tests / Build end-to-end (apigw-http)	48s
system-tests / Build end-to-end (function-url)	52s
system-tests / parametric	0s
system-tests / End-to-end #1 / alb 1	3m 32s
system-tests / End-to-end #1 / apigw-http 1	3m 1s
system-tests / End-to-end #1 / apigw-rest 1	3m 15s
system-tests / End-to-end #1 / function-url 1	2m 56s
system-tests / End-to-end #1 / alb-multi 1	2m 50s
	21m 23s

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