chore: release v0.1.20 #15

Job	Run time
sdist	14s
windows (x86_64-pc-windows-msvc)	6m 20s
macos (aarch64-apple-darwin)	2m 4s
macos (x86_64-apple-darwin)	3m 16s
linux (x86_64-unknown-linux-gnu)	3m 12s
Smoke (local) windows-latest py3.12	42s
Publish to PyPI	0s
Smoke (registry) ${{ matrix.os }} py${{ matrix.python }}	0s
Report registry smoke failure	0s
	15m 48s

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