Use proper sync resolution in CI #2592

Job	Run time
checks / pre-commit	31s
checks / readme-snippets	11s
checks / Test (3.10) (windows-latest) (lowest-direct)	3m 43s
checks / Test (3.10) (ubuntu-latest) (lowest-direct)	37s
checks / Test (3.10) (ubuntu-latest) (highest)	36s
checks / Test (3.12) (ubuntu-latest) (highest)	32s
checks / Test (3.11) (windows-latest) (lowest-direct)	1m 18s
checks / Test (3.11) (windows-latest) (highest)	1m 15s
checks / Test (3.10) (windows-latest) (highest)	1m 13s
checks / Test (3.11) (ubuntu-latest) (lowest-direct)	35s
checks / Test (3.12) (ubuntu-latest) (lowest-direct)	34s
checks / Test (3.12) (windows-latest) (lowest-direct)	6m 1s
checks / Test (3.12) (windows-latest) (highest)	1m 21s
checks / Test (3.13) (windows-latest) (highest)	1m 21s
checks / Test (3.13) (ubuntu-latest) (lowest-direct)	38s
checks / Test (3.11) (ubuntu-latest) (highest)	32s
checks / Test (3.13) (ubuntu-latest) (highest)	33s
checks / Test (3.13) (windows-latest) (lowest-direct)	1m 20s
	22m 51s

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