Rename iter_raw to slices #8089

Job	Run time
Typos Check	4s
Lints and doc tests on ubuntu-latest	8m 10s
Lints and doc tests on windows-latest	12m 17s
Unit tests on ubuntu-latest	15m 29s
Lints and doc tests on macos-13	15m 47s
Unit tests on windows-latest	26m 25s
Lints and doc tests on macos-14	5m 5s
Unit tests on macos-13	13m 4s
Unit tests on macos-14	9m 38s
Memory leak checks	2m 25s
CI status checks	1s
	1h 48m 25s

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