Bump version to 1.3.18.post0 #61

Job	Run time
Build wheels on windows-2019 AMD64 ARM64	7m 19s
test (ubuntu-latest, 3.9)	54s
Build wheels on macos-11 x86_64	5m 1s
test (ubuntu-latest, 3.10)	55s
Build wheels on macos-14 arm64	1m 47s
test (ubuntu-latest, 3.11)	50s
Build wheels on ubuntu-20.04 aarch64	13m 40s
test (ubuntu-latest, 3.12)	1m 7s
Build wheels on ubuntu-20.04 x86_64	2m 33s
test (macos-latest, 3.9)	1m 44s
test (macos-latest, 3.10)	1m 50s
test (macos-latest, 3.11)	1m 32s
test (macos-latest, 3.12)	1m 44s
test (windows-latest, 3.9)	2m 55s
test (windows-latest, 3.10)	3m 5s
test (windows-latest, 3.11)	3m 42s
test (windows-latest, 3.12)	3m 41s
publish	1m 15s
	55m 34s

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