Use bitmask for MaskedArray mask #20677

Job	Run time
Pyodide build	4m 16s
Linux-32-bit	8m 41s
Linux-Musl	6m 39s
python-freethreading	4m 20s
python-dev (macOS-13)	3m 43s
python-dev (macOS-14)	2m 32s
python-dev (ubuntu-22.04)	4m 27s
python-dev (windows-latest)	5m 7s
macos-13 actions-311.yaml	1h 30m 43s
macos-13 actions-310.yaml	1h 32m 58s
macos-13 actions-312.yaml	1h 30m 46s
macos-14 actions-310.yaml	1h 30m 18s
macos-14 actions-312.yaml	1h 4m 23s
macos-14 actions-311.yaml	1h 10m 0s
windows-latest actions-311.yaml	27m 16s
windows-latest actions-312.yaml	29m 53s
windows-latest actions-310.yaml	24m 58s
ubuntu-latest actions-310.yaml	1h 30m 16s
Minimum Versions	1h 5m 24s
ubuntu-latest actions-311.yaml	1h 30m 16s
Locale: zh_CN	1h 21m 24s
Future infer strings (without pyarrow)	1h 30m 15s
Locale: it_IT	1h 18m 30s
Downstream Compat	7m 56s
Numpy Dev	54m 13s
Pyarrow Nightly	59m 1s
ubuntu-latest actions-312.yaml	1h 30m 15s
Pypy	2m 7s
Future infer strings	1h 34m 59s
	23h 45m 36s

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