uv: Do not recalculate dependencies when exporting #30127

Job	Run time
build-client / build-client	9m 0s
setup-selenium / setup_chromedriver	5s
Test (3.8, 0)	44m 20s
Test (3.8, 1)	55m 43s
Test (3.8, 2)	54m 56s
	2h 44m 4s

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