chore: switch to pyproject #40

Job	Run time
matrix	7s
test (3.8)	33s
test (3.9)	38s
test (3.10)	40s
test (3.11)	33s
test (3.12)	28s
test (3.13)	32s
test (3.8, typer-minimal)	32s
test (3.8, pydantic-latest)	34s
test (3.8, typer-latest)	33s
test (3.13, typer-minimal)	44s
test (3.13, pydantic-latest)	45s
test (3.13, typer-latest)	37s
test (3.8, typer-latest, windows-latest)	1m 16s
test (3.8, typer-latest, macos-latest)	1m 17s
test (3.13, typer-latest, windows-latest)	1m 33s
test (3.13, typer-latest, macos-latest)	34s
	11m 56s

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