feature #49580: support new-style float_format string in to_csv #24277

Job	Run time
Linux-32-bit	8m 1s
Linux-Musl	8m 0s
python-dev	0s
Pyodide build	8m 6s
macos-14 actions-313.yaml	8m 1s
windows-latest actions-312.yaml	7m 59s
windows-latest actions-310.yaml	8m 4s
macos-13 actions-311.yaml	8m 8s
macos-13 actions-312.yaml	7m 59s
macos-13 actions-313.yaml	7m 51s
macos-14 actions-310.yaml	7m 59s
macos-13 actions-310.yaml	7m 57s
macos-14 actions-312.yaml	7m 59s
windows-latest actions-313.yaml	8m 8s
windows-latest actions-311.yaml	7m 57s
macos-14 actions-311.yaml	8m 1s
ubuntu-24.04-arm actions-310.yaml	3m 15s
Future infer strings	12m 44s
ubuntu-24.04-arm actions-311.yaml	3m 15s
Future infer strings (without pyarrow)	12m 55s
Downstream Compat	5m 20s
Locale: it_IT	8m 0s
ubuntu-24.04 actions-310.yaml	12m 53s
ubuntu-24.04 actions-313.yaml	12m 48s
Pyarrow Nightly	8m 1s
ubuntu-24.04 actions-311.yaml	12m 52s
ubuntu-24.04-arm actions-312.yaml	12m 42s
Numpy Dev	8m 1s
Minimum Versions	8m 2s
Locale: zh_CN	8m 0s
ubuntu-24.04 actions-312.yaml	12m 46s
Pypy	1m 28s
ubuntu-24.04-arm actions-313.yaml	12m 42s
Freethreading	8m 5s
	4h 43m 59s

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