feature #49580: support new-style float_format string in to_csv #24273

Job	Run time
Linux-32-bit	18m 27s
Linux-Musl	15m 11s
python-dev	0s
Pyodide build	23m 37s
macos-14 actions-311.yaml	32m 30s
macos-13 actions-310.yaml	38m 28s
macos-14 actions-312.yaml	19m 18s
windows-latest actions-310.yaml	35m 24s
windows-latest actions-311.yaml	37m 0s
windows-latest actions-312.yaml	38m 44s
macos-13 actions-311.yaml	37m 51s
windows-latest actions-313.yaml	42m 26s
macos-13 actions-313.yaml	37m 38s
macos-13 actions-312.yaml	43m 10s
macos-14 actions-310.yaml	20m 4s
macos-14 actions-313.yaml	20m 21s
Downstream Compat	6m 18s
Future infer strings	42m 28s
Numpy Dev	18m 34s
Locale: zh_CN	23m 38s
ubuntu-24.04 actions-311.yaml	42m 31s
ubuntu-24.04-arm actions-313.yaml	35m 37s
ubuntu-24.04-arm actions-311.yaml	35m 21s
Minimum Versions	23m 5s
Future infer strings (without pyarrow)	38m 27s
ubuntu-24.04 actions-312.yaml	42m 28s
Freethreading	21m 10s
ubuntu-24.04-arm actions-312.yaml	35m 48s
Locale: it_IT	23m 50s
ubuntu-24.04 actions-310.yaml	42m 28s
Pypy	1m 45s
Pyarrow Nightly	20m 21s
ubuntu-24.04 actions-313.yaml	42m 30s
ubuntu-24.04-arm actions-310.yaml	38m 58s
	16h 35m 26s

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