Add span.kind=server to aws.lambda spans #421

Job	Run time
build	1m 12s
system-tests / Get parameters / Get parameters	13s
system-tests / Build end-to-end (apigw-rest)	1m 13s
system-tests / Build end-to-end (alb-multi)	1m 7s
system-tests / Build end-to-end (apigw-http)	1m 15s
system-tests / Build end-to-end (alb)	1m 22s
system-tests / Build end-to-end (function-url)	1m 18s
system-tests / parametric	-1s
system-tests / End-to-end #1 / apigw-rest 1	5m 11s
system-tests / End-to-end #1 / alb 1	3m 27s
system-tests / End-to-end #1 / alb-multi 1	5m 11s
system-tests / End-to-end #1 / function-url 1	3m 21s
system-tests / End-to-end #1 / apigw-http 1	4m 11s
system-tests / Report failures	-1s
	28m 59s

Provide feedback