Force cart calculation when calling `estimateShipping` (#1918) #1220

Job	Run time
tag_split_packages (admin)	13s
tag_split_packages (core)	21s
tag_split_packages (opayo)	23s
tag_split_packages (paypal)	17s
tag_split_packages (table-rate-shipping)	19s
tag_split_packages (stripe)	11s
tag_split_packages (meilisearch)	12s
	1m 56s

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