Drop Python 3.9 and bump NumPy versions in conda-package workflow #117

Job	Run time
build_windows (3.11)	8m 4s
build_windows (3.12)	8m 11s
build_linux (3.11)	2m 34s
build_linux (3.12)	2m 32s
build_windows (3.10)	8m 53s
build_linux (3.10)	2m 39s
test_linux (3.10, 2*, false, ubuntu-latest)	1m 17s
test_linux (3.11, 2*, false, ubuntu-latest)	1m 18s
test_linux (3.12, 2*, false, ubuntu-latest)	1m 28s
test_windows (3.10, 2*, false, windows-latest)	2m 14s
test_windows (3.12, 2*, false, windows-latest)	2m 25s
test_windows (3.11, 2*, false, windows-latest)	2m 34s
	44m 9s

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