OXDEV-8721 Fix duplicate shipping costs calculation #912

Job	Run time
build_testplan	1s
shop_ce / init	14s
shop_ce / install (8.4, 8.0.36)	2m 0s
shop_ce / yamllint	4s
shop_ce / runslim	0s
shop_ce / runscript (8.4, 8.0.36, shop:~/unit.sh)	1m 2s
shop_ce / actionlint	8s
shop_ce / runscript (8.4, 8.0.36, shop:~/integration.sh)	12m 47s
shop_ce / runscript (8.4, 8.0.36, shop:~/codeception.sh)	31m 57s
shop_ce / runscript (8.4, 8.0.36, setup:~/shop-setup.sh)	2m 20s
shop_ce / sonarcloud (8.4, 8.0.36, -)	2m 54s
shop_ce / sonarcloud (8.4, 8.0.36, ~/sonarcloud_oxideshop_ce_internal.yaml)	1m 12s
shop_ce / finish	49s
	55m 28s

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