Prepare 18.1.0 release. #989

Job	Run time
mypy	23s
sdist	46s
ruff	6s
tox (windows-latest)	2m 36s
tox (ubuntu-latest)	2m 12s
parse_sdl (macos-latest, 2.0.14)	24s
parse_sdl (windows-latest, 2.0.16)	43s
parse_sdl (windows-latest, 2.0.14)	51s
parse_sdl (macos-latest, 2.0.16)	27s
build (ubuntu-latest, 3.8, x64)	3m 24s
build (windows-latest, pypy-3.8, x64)	4m 22s
parse_sdl (windows-latest, 2.30.0)	41s
test-docs	2m 32s
build (ubuntu-latest, pypy-3.8, x64)	4m 6s
linux-wheels (x86_64, cp38-manylinux*)	2m 10s
build-macos (pp38-*)	3m 56s
build (windows-latest, pypy-3.8, x86)	4m 22s
linux-wheels (x86_64, pp38-manylinux*)	1m 57s
build-macos (cp38-*_universal2)	5m 3s
parse_sdl (macos-latest, 2.30.0)	23s
build (windows-latest, 3.8, x64)	3m 58s
linux-wheels (aarch64, cp38-manylinux*)	13m 5s
build (windows-latest, 3.8, x86)	4m 32s
linux-wheels (aarch64, pp38-manylinux*)	11m 14s
publish	0s
	1h 14m 13s

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