Prepare 1.2.1 release (#13088) #138

Job	Run time
Build wheels (ubuntu-latest)	23m 29s
Build wheels (macos-12)	29m 14s
Build wheels (windows-latest)	30m 58s
Build wheels (macos-14)	13m 22s
Build wheels on macOS arm (macos-12)	10m 19s
Build wheels 32bit (ubuntu-latest)	4m 46s
Build wheels 32bit (windows-latest)	8m 10s
Build wheels on ubuntu-latest	49m 1s
Build wheels on s390x (ubuntu-latest)	40m 4s
Build wheels on ppc64le (ubuntu-latest)	30m 38s
Upload shared build wheels	47s
Build and publish sdist (ubuntu-latest)	41s
	4h 1m 29s

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