BUG: Fix infer_dtype result for float with embedded pd.NA #23796

Job	Run time
Linux-32-bit	18m 42s
python-dev	0s
Linux-Musl	15m 34s
Pyodide build	24m 47s
macos-13 actions-313.yaml	31m 30s
macos-13 actions-311.yaml	32m 10s
macos-14 actions-311.yaml	18m 11s
windows-latest actions-312.yaml	38m 23s
macos-13 actions-310.yaml	31m 35s
macos-14 actions-310.yaml	26m 33s
windows-latest actions-310.yaml	35m 12s
macos-13 actions-312.yaml	31m 55s
macos-14 actions-312.yaml	15m 50s
macos-14 actions-313.yaml	24m 48s
windows-latest actions-311.yaml	37m 9s
windows-latest actions-313.yaml	42m 47s
Pypy	1m 22s
Locale: zh_CN	24m 37s
ubuntu-24.04-arm actions-310.yaml	36m 7s
ubuntu-24.04 actions-310.yaml	46m 42s
Numpy Dev	16m 49s
Minimum Versions	23m 52s
Future infer strings	44m 34s
Downstream Compat	5m 28s
ubuntu-24.04 actions-313.yaml	49m 47s
ubuntu-24.04 actions-311.yaml	43m 30s
ubuntu-24.04-arm actions-311.yaml	33m 54s
Locale: it_IT	25m 8s
ubuntu-24.04 actions-312.yaml	45m 14s
Freethreading	21m 46s
Pyarrow Nightly	21m 5s
ubuntu-24.04-arm actions-312.yaml	34m 17s
Future infer strings (without pyarrow)	39m 9s
ubuntu-24.04-arm actions-313.yaml	34m 40s
	16h 13m 7s

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