TST (string dtype): resolve all xfails in IO parser tests #20406

Job	Run time
Pyodide build	24m 59s
Linux-32-bit	19m 10s
Linux-Musl	16m 41s
python-freethreading	22m 42s
python-dev (macOS-13)	21m 33s
python-dev (macOS-14)	12m 1s
python-dev (ubuntu-22.04)	21m 10s
python-dev (windows-latest)	23m 44s
macos-13 actions-310.yaml	23m 52s
macos-13 actions-311.yaml	25m 37s
macos-14 actions-310.yaml	20m 36s
macos-13 actions-312.yaml	30m 11s
macos-14 actions-311.yaml	18m 50s
macos-14 actions-312.yaml	19m 27s
windows-latest actions-311.yaml	34m 22s
windows-latest actions-310.yaml	34m 32s
windows-latest actions-312.yaml	47m 28s
ubuntu-latest actions-310.yaml	44m 47s
ubuntu-latest actions-311.yaml	39m 53s
Minimum Versions	23m 5s
Future infer strings (without pyarrow)	39m 0s
Locale: zh_CN	22m 55s
Locale: it_IT	23m 5s
Downstream Compat	5m 36s
Pyarrow Nightly	19m 43s
ubuntu-latest actions-312.yaml	45m 35s
Numpy Dev	16m 41s
Future infer strings	47m 18s
Pypy	1m 8s
	12h 25m 41s

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