Store subarray description in the output file of the stats tool #5172

Job	Run time
docs	9m 37s
lint	29s
tests (Linux (3.10, mamba), ubuntu-24.04, 3.10, mamba, tests,all)	13m 1s
tests (Linux (3.11, pip, minimal-dependencies), ubuntu-24.04, 3.11, pip, tests)	11m 37s
tests (Linux (3.12, pip, coverage), ubuntu-24.04, 3.12, pip, codecov, tests,all)	14m 50s
tests (Linux (3.12, mamba), ubuntu-24.04, 3.12, mamba, tests,all)	14m 44s
tests (Linux (3.13, pip), ubuntu-24.04, 3.13, pip, tests,all)	15m 26s
tests (macos (3.10, x86_64, pip), macos-13, 3.10, pip, tests,all)	12m 41s
tests (macos (3.12, arm64, mamba), macos-14, 3.12, mamba, tests,all)	13m 42s
	1h 46m 7s

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