prepare release #20

Job	Run time
lint / lint	15s
variants / build (3.12, ubuntu-latest)	1m 28s
variants / build (3.9, macos-latest)	1m 32s
typecheck / build	24s
variants / build (3.9, ubuntu-latest)	1m 19s
variants / build (3.9, windows-latest)	1m 44s
variants / build (3.12, macos-latest)	1m 26s
tests / build (3.9, windows-latest)	1m 2s
tests / build (3.10, windows-latest)	1m 48s
variants / build (3.12, windows-latest)	1m 34s
tests / build (3.10, ubuntu-latest)	23s
tests / build (3.10, macos-latest)	21s
tests / build (3.9, ubuntu-latest)	16s
tests / build (3.12, windows-latest)	30s
tests / build (3.13, macos-latest)	32s
tests / build (3.13, ubuntu-latest)	18s
tests / build (3.11, windows-latest)	35s
tests / build (3.13, windows-latest)	35s
tests / build (3.11, macos-latest)	26s
tests / build (3.12, ubuntu-latest)	18s
tests / build (3.12, macos-latest)	23s
tests / build (3.11, ubuntu-latest)	18s
Build & verify package	0s
Publish in-dev package to test.pypi.org	0s
docs	0s
Publish released package to pypi.org	0s
	17m 27s

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