Drop Python 3.9 and bump NumPy versions in conda-package workflow #119

Job	Run time
build_linux (3.11)	2m 30s
build_windows (3.12)	6m 48s
build_windows (3.11)	6m 36s
build_linux (3.12)	2m 22s
build_linux (3.10)	2m 31s
build_windows (3.10)	6m 13s
test_linux (3.10, 2*, false, ubuntu-latest)	1m 22s
test_linux (3.11, 2*, false, ubuntu-latest)	1m 51s
test_linux (3.12, 2*, false, ubuntu-latest)	1m 34s
test_windows (3.10, 2*, false, windows-latest)	2m 2s
test_windows (3.11, 2*, false, windows-latest)	2m 27s
test_windows (3.12, 2*, false, windows-latest)	2m 15s
	38m 31s

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