Drop Python 3.11 support #98

Job	Run time
Build wheels on ubuntu-24.04-arm	12m 24s
Build wheels on macos-latest	5m 5s
Build wheels on windows-latest	9m 40s
Build wheels on ubuntu-latest	17m 6s
Make SDist	11s
Build wheels on macos-26-intel	8m 6s
upload_all	-1s
	52m 31s

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