[TST] Parse arrow_dtype as datetime index #21698

Job	Run time
Linux-32-bit	19m 12s
Pyodide build	23m 25s
Linux-Musl	21m 36s
python-freethreading	24m 8s
python-dev (macOS-13)	21m 52s
python-dev (macOS-14)	15m 45s
python-dev (ubuntu-22.04)	20m 59s
python-dev (windows-latest)	23m 43s
macos-13 actions-311.yaml	30m 49s
macos-13 actions-310.yaml	35m 57s
macos-13 actions-312.yaml	42m 36s
macos-14 actions-310.yaml	22m 18s
macos-14 actions-311.yaml	19m 24s
windows-latest actions-311.yaml	36m 13s
windows-latest actions-312.yaml	50m 20s
macos-14 actions-312.yaml	21m 12s
windows-latest actions-310.yaml	35m 24s
Minimum Versions	23m 7s
Future infer strings (without pyarrow)	38m 41s
Locale: zh_CN	24m 12s
Locale: it_IT	24m 18s
Downstream Compat	6m 0s
Numpy Dev	17m 20s
Pyarrow Nightly	21m 24s
Future infer strings	48m 53s
Pypy	1m 14s
ubuntu-22.04 actions-310.yaml	47m 30s
ubuntu-22.04 actions-311.yaml	41m 33s
ubuntu-22.04 actions-312.yaml	45m 44s
ubuntu-24.04-arm actions-311.yaml	33m 21s
ubuntu-24.04-arm actions-312.yaml	37m 30s
ubuntu-24.04-arm actions-310.yaml	33m 41s
	15h 9m 21s

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