chore: drop Python 3.9 support #153

Job	Run time
Build Package	8s
Type Check (mypy)	10s
Type Check (pyright)	12s
Test npx fallback (py3.12, windows-latest)	4m 1s
Test npx fallback (py3.12, ubuntu-latest)	2m 3s
Lint and Format	11s
Test (py3.13, ubuntu-latest)	2m 9s
Test (py3.13, windows-latest)	10m 54s
Test (py3.10, ubuntu-latest)	2m 18s
Test (py3.10, windows-latest)	11m 17s
CI Success	2s
	33m 25s

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