POC: PDEP16 default to masked nullable dtypes #24092

Job	Run time
Linux-32-bit	9m 29s
Linux-Musl	6m 12s
python-dev	0s
macos-13 actions-312.yaml	1h 30m 38s
Pyodide build	6m 25s
macos-13 actions-313.yaml	1h 30m 43s
macos-14 actions-311.yaml	1h 30m 38s
macos-13 actions-311.yaml	1h 30m 40s
macos-14 actions-310.yaml	1h 30m 36s
macos-14 actions-313.yaml	1h 30m 28s
windows-latest actions-311.yaml	1h 31m 20s
windows-latest actions-310.yaml	1h 31m 11s
macos-14 actions-312.yaml	1h 30m 25s
windows-latest actions-312.yaml	1h 31m 13s
macos-13 actions-310.yaml	1h 30m 40s
windows-latest actions-313.yaml	1h 30m 45s
Numpy Dev	1h 30m 19s
ubuntu-24.04-arm actions-311.yaml	1h 31m 32s
ubuntu-24.04 actions-312.yaml	1h 31m 45s
Locale: zh_CN	1h 30m 24s
Freethreading	1h 30m 20s
ubuntu-24.04-arm actions-313.yaml	1h 31m 34s
ubuntu-24.04-arm actions-310.yaml	1h 31m 27s
ubuntu-24.04 actions-310.yaml	1h 31m 43s
Future infer strings	1h 31m 44s
ubuntu-24.04 actions-313.yaml	1h 31m 48s
Downstream Compat	6m 19s
ubuntu-24.04 actions-311.yaml	1h 31m 35s
Pypy	1m 56s
Locale: it_IT	1h 30m 22s
Pyarrow Nightly	1h 30m 20s
Future infer strings (without pyarrow)	1h 31m 33s
Minimum Versions	1h 30m 23s
ubuntu-24.04-arm actions-312.yaml	1h 31m 45s
	1d 18h 58m 12s

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