Drop Python 3.9 and bump NumPy versions in conda-package workflow #118

Job	Run time
build_linux (3.10)	2m 30s
build_linux (3.12)	2m 38s
build_windows (3.12)	7m 55s
build_windows (3.11)	7m 24s
build_windows (3.10)	9m 0s
build_linux (3.11)	2m 48s
test_linux (3.10, 2*, false, ubuntu-latest)	1m 22s
test_linux (3.12, 2*, false, ubuntu-latest)	1m 55s
test_linux (3.11, 2*, false, ubuntu-latest)	1m 38s
test_windows (3.12, 2*, false, windows-latest)	2m 33s
test_windows (3.10, 2*, false, windows-latest)	2m 27s
test_windows (3.11, 2*, false, windows-latest)	2m 33s
	44m 43s

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