Bump actions/upload-artifact from 5.0.0 to 6.0.0 #5957

Job	Run time
build_windows (3.14)	40m 18s
build_linux (3.10)	31m 23s
build_windows (3.13)	44m 57s
build_linux (3.12)	30m 10s
build_windows (3.11)	44m 54s
build_linux (3.13)	30m 39s
build_windows (3.10)	45m 25s
build_linux (3.11)	29m 43s
build_linux (3.14)	30m 10s
build_windows (3.12)	45m 34s
test_linux (3.13, false, ubuntu-22.04)	9m 47s
array-api-conformity (3.10, false, ubuntu-22.04)	4m 35s
test_linux (3.11, false, ubuntu-22.04)	9m 12s
test_linux (3.12, false, ubuntu-22.04)	9m 30s
test_examples_linux (3.11, false, ubuntu-22.04)	8m 7s
test_linux (3.10, false, ubuntu-22.04)	9m 46s
test_linux (3.14, false, ubuntu-22.04)	9m 54s
upload_linux	0s
test_windows (3.14, false, windows-latest)	17m 15s
test_windows (3.11, false, windows-latest)	14m 41s
test_windows (3.13, false, windows-latest)	15m 26s
test_windows (3.10, false, windows-latest)	15m 41s
test_windows (3.12, false, windows-latest)	14m 30s
Clean up anaconda packages	0s
upload_windows	0s
	8h 31m 37s

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