chore: do not use Span.set_tag_str #120

Job	Run time
build	1m 5s
system-tests / Get parameters / Get parameters	14s
system-tests / Build end-to-end (apigw-rest)	1m 14s
system-tests / Build end-to-end (alb)	1m 10s
system-tests / Build end-to-end (apigw-http)	1m 9s
system-tests / Build end-to-end (function-url)	1m 9s
system-tests / Build end-to-end (alb-multi)	1m 10s
system-tests / parametric	-1s
system-tests / End-to-end #1 / alb 1	2m 0s
system-tests / End-to-end #1 / alb-multi 1	1m 34s
system-tests / End-to-end #1 / apigw-http 1	1m 45s
system-tests / End-to-end #1 / function-url 1	1m 25s
system-tests / End-to-end #1 / apigw-rest 1	1m 56s
system-tests / Report failures	0s
	15m 50s

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