Add 3.15 to CI (#678) #183

Job	Run time
Build wheels on windows-11-arm	4m 44s
Build wheels on ubuntu-24.04	4m 17s
Build wheels on ubuntu-24.04-arm	4m 28s
Build wheels on macos-13	1d 0h 0m 0s
Build wheels on ubuntu-24.04-riscv64	31m 41s
Build wheels on windows-latest	8m 4s
Build wheels on macos-latest	2m 35s
upload_pypi	-1s
combine_wheels	-1s
	1d 0h 55m 47s

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