feature #49580: support new-style float_format string in to_csv #24280

Job	Run time
python-dev	-1s
Linux-32-bit	13m 34s
Linux-Musl	13m 35s
windows-latest actions-312.yaml	13m 45s
macos-13 actions-312.yaml	13m 28s
macos-13 actions-313.yaml	13m 48s
macos-14 actions-311.yaml	13m 36s
windows-latest actions-313.yaml	13m 42s
macos-14 actions-310.yaml	13m 33s
macos-13 actions-311.yaml	13m 28s
macos-14 actions-312.yaml	13m 37s
macos-14 actions-313.yaml	13m 34s
macos-13 actions-310.yaml	13m 31s
windows-latest actions-310.yaml	13m 42s
Pyodide build	13m 33s
windows-latest actions-311.yaml	13m 40s
Freethreading	13m 34s
Future infer strings	17m 50s
Minimum Versions	13m 30s
Pypy	1m 24s
ubuntu-24.04-arm actions-312.yaml	17m 48s
Locale: zh_CN	13m 34s
Future infer strings (without pyarrow)	17m 47s
ubuntu-24.04 actions-310.yaml	17m 47s
ubuntu-24.04 actions-312.yaml	17m 49s
Downstream Compat	5m 24s
Locale: it_IT	13m 31s
ubuntu-24.04-arm actions-311.yaml	18m 14s
Numpy Dev	13m 32s
Pyarrow Nightly	13m 34s
ubuntu-24.04 actions-311.yaml	17m 47s
ubuntu-24.04 actions-313.yaml	17m 50s
ubuntu-24.04-arm actions-313.yaml	17m 49s
ubuntu-24.04-arm actions-310.yaml	18m 18s
	7h 51m 7s

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