Bump scipp from 25.1.0 to 25.2.0 in /requirements #330

Job	Run time
Formatting and static analysis	12s
Tests (ubuntu-22.04, 3.10, py310) / test	5m 44s
Tests (ubuntu-22.04, 3.10, py310) / package-test	25s
docs / Build documentation	6m 55s
	13m 16s

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