[MAINT] Fix building docs in CI #5467

Job	Run time
build_windows (3.9)	1h 7m 5s
build_windows (3.10)	1h 11m 28s
build_windows (3.11)	1h 10m 37s
build_windows (3.12)	1h 7m 35s
build_windows (3.13)	1h 5m 33s
build_linux (3.9)	36m 42s
build_linux (3.10)	37m 57s
build_linux (3.11)	36m 32s
build_linux (3.12)	37m 11s
build_linux (3.13)	38m 28s
test_examples_linux (3.11, false, ubuntu-22.04)	7m 40s
array-api-conformity (3.10, false, ubuntu-22.04)	5m 1s
test_linux (3.9, false, ubuntu-22.04)	11m 3s
test_linux (3.10, false, ubuntu-22.04)	11m 5s
test_linux (3.11, false, ubuntu-22.04)	10m 52s
test_linux (3.12, false, ubuntu-22.04)	10m 52s
test_linux (3.13, false, ubuntu-22.04)	10m 46s
upload_linux	0s
test_windows (3.9, false, windows-2019)	14m 47s
test_windows (3.10, false, windows-2019)	13m 27s
test_windows (3.11, false, windows-2019)	13m 47s
test_windows (3.12, false, windows-2019)	14m 15s
test_windows (3.13, false, windows-2019)	15m 30s
upload_windows	0s
Clean up anaconda packages	0s
	11h 8m 13s

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