Bump pypa/cibuildwheel from 2.20.0 to 2.21.0 (#1206) #993

Job	Run time
lint	1m 33s
Rust unit tests (ubuntu-latest)	2m 39s
Rust unit tests (macos-latest)	1m 50s
docs	1m 40s
Rustfmt	8s
Rust unit tests (windows-latest)	4m 48s
test (macos-latest, 3.9)	4m 3s
test (macos-latest, 3.10)	3m 49s
typecheck	1m 15s
test (macos-latest, 3.11)	4m 14s
test (macos-latest, 3.12)	5m 7s
test (ubuntu-latest, 3.9)	5m 24s
test (ubuntu-latest, 3.10)	5m 29s
test (ubuntu-latest, 3.11)	6m 5s
test (ubuntu-latest, 3.12)	8m 21s
test (windows-latest, 3.9)	8m 41s
test (windows-latest, 3.10)	8m 49s
test (windows-latest, 3.11)	11m 6s
test (windows-latest, 3.12)	11m 12s
	1h 36m 13s

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