refactor: refactor update_sel and save min_nbor_dist #7805

Job	Run time
Test Python (1, 3.8)	11m 57s
Test Python (1, 3.11)	11m 35s
Test Python (2, 3.8)	8m 30s
Test Python (2, 3.11)	9m 20s
Test Python (3, 3.8)	9m 25s
Test Python (3, 3.11)	8m 33s
Test Python (4, 3.8)	11m 5s
Test Python (4, 3.11)	9m 55s
Test Python (5, 3.8)	12m 5s
Test Python (5, 3.11)	10m 3s
Test Python (6, 3.8)	10m 43s
Test Python (6, 3.11)	10m 11s
Combine and update integration test durations (3.8)	5s
Combine and update integration test durations (3.11)	5s
Pass testing Python	1s
	2h 3m 33s

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