Add 3.15-dev #129

Job	Run time
build_wheel_and_sdist	18s
mypy-strict	13s
pre-commit	17s
test_on_all_platforms (3.9, windows-latest)	48s
test_on_all_platforms (3.9, ubuntu-24.04)	37s
test_on_all_platforms (3.10, macos-latest)	2m 5s
test_on_all_platforms (3.9, macos-latest)	48s
test_on_all_platforms (3.10, ubuntu-24.04)	29s
test_on_all_platforms (3.10, windows-latest)	49s
test_on_all_platforms (3.11, macos-latest)	1m 40s
test_on_all_platforms (3.13, macos-latest)	1m 37s
test_on_all_platforms (3.11, windows-latest)	53s
test_on_all_platforms (3.12, ubuntu-24.04)	32s
test_on_all_platforms (3.12, macos-latest)	1m 35s
test_on_all_platforms (3.15-dev, ubuntu-24.04)	41s
test_on_all_platforms (3.14, macos-latest)	1m 38s
test_on_all_platforms (3.11, ubuntu-24.04)	36s
test_on_all_platforms (3.15-dev, windows-latest)	1m 49s
test_on_all_platforms (3.12, windows-latest)	48s
test_on_all_platforms (3.14, windows-latest)	1m 28s
test_on_all_platforms (3.13, ubuntu-24.04)	28s
test_on_all_platforms (3.14, ubuntu-24.04)	45s
test_on_all_platforms (3.13, windows-latest)	48s
test_on_all_platforms (3.15-dev, macos-latest)	2m 1s
	23m 43s

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