Bump minimum NumPy version in `pyproject.toml` #6303

Job	Run time
build_windows (3.11)	9m 4s
build_linux (3.13)	5m 5s
build_linux (3.14)	5m 24s
build_windows (3.13)	8m 57s
build_windows (3.12)	8m 47s
build_windows (3.14)	9m 41s
build_linux (3.12)	7m 0s
build_linux (3.10)	5m 29s
build_windows (3.10)	8m 29s
build_linux (3.11)	4m 51s
test_examples_linux (3.11, false, ubuntu-latest)	5m 14s
test_linux (3.13, false, ubuntu-latest)	2m 22s
test_linux (3.12, false, ubuntu-latest)	2m 19s
test_linux (3.10, false, ubuntu-latest)	2m 54s
test_linux (3.14, false, ubuntu-latest)	2m 14s
test_linux (3.11, false, ubuntu-latest)	2m 50s
test_windows (3.12, false, windows-latest)	3m 15s
test_windows (3.14, false, windows-latest)	3m 29s
test_windows (3.11, false, windows-latest)	3m 25s
test_windows (3.10, false, windows-latest)	3m 46s
test_windows (3.13, false, windows-latest)	3m 23s
upload_linux	0s
upload_windows	0s
Clean up anaconda packages	0s
	1h 47m 58s

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