ci: fix ddtrace version detection (#764) #513

Job	Run time
build	1m 5s
system-tests / Get parameters / Get parameters	13s
system-tests / Build end-to-end (apigw-http)	1m 21s
system-tests / Build end-to-end (apigw-rest)	1m 12s
system-tests / Build end-to-end (alb)	1m 11s
system-tests / Build end-to-end (function-url)	1m 10s
system-tests / Build end-to-end (alb-multi)	1m 12s
system-tests / parametric	0s
system-tests / End-to-end #1 / apigw-rest 1	3m 57s
system-tests / End-to-end #1 / apigw-http 1	3m 59s
system-tests / End-to-end #1 / function-url 1	3m 32s
system-tests / End-to-end #1 / alb-multi 1	3m 14s
system-tests / End-to-end #1 / alb 1	4m 7s
system-tests / Report failures	0s
	26m 13s

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