[MAINT] Do not use copyright year ranges #6322

Job	Run time
build_linux (3.11)	5m 8s
build_windows (3.10)	9m 20s
build_windows (3.11)	9m 3s
build_linux (3.13)	4m 52s
build_windows (3.13)	11m 44s
build_linux (3.12)	5m 22s
build_linux (3.10)	5m 27s
build_linux (3.14)	5m 44s
build_windows (3.12)	8m 28s
build_windows (3.14)	8m 34s
test_examples_linux (3.14, false, ubuntu-latest)	5m 23s
test_linux (3.11, false, ubuntu-latest)	2m 8s
test_linux (3.14, false, ubuntu-latest)	2m 39s
test_linux (3.13, false, ubuntu-latest)	2m 19s
test_linux (3.12, false, ubuntu-latest)	2m 32s
test_linux (3.10, false, ubuntu-latest)	2m 15s
upload_linux	-1s
test_windows (3.13, false, windows-latest)	3m 30s
test_windows (3.14, false, windows-latest)	3m 40s
test_windows (3.11, false, windows-latest)	3m 58s
test_windows (3.10, false, windows-latest)	3m 20s
test_windows (3.12, false, windows-latest)	3m 39s
upload_windows	-1s
Clean up anaconda packages	-1s
	1h 49m 2s

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