TST (string dtype): resolve xfails for frame methods #21738

Job	Run time
Pyodide build	22m 55s
Linux-32-bit	19m 1s
Linux-Musl	21m 5s
python-freethreading	23m 33s
python-dev (macOS-13)	25m 3s
python-dev (macOS-14)	12m 33s
python-dev (ubuntu-22.04)	20m 12s
python-dev (windows-latest)	22m 37s
macos-13 actions-310.yaml	30m 56s
macos-13 actions-311.yaml	24m 44s
macos-13 actions-312.yaml	33m 34s
macos-14 actions-310.yaml	20m 45s
macos-14 actions-311.yaml	19m 9s
macos-14 actions-312.yaml	15m 41s
windows-latest actions-312.yaml	45m 5s
windows-latest actions-311.yaml	34m 52s
windows-latest actions-310.yaml	34m 42s
Minimum Versions	23m 27s
Future infer strings (without pyarrow)	41m 3s
Locale: zh_CN	23m 11s
Locale: it_IT	23m 22s
Downstream Compat	5m 42s
Numpy Dev	17m 8s
Pyarrow Nightly	20m 5s
Pypy	1m 34s
Future infer strings	48m 12s
ubuntu-22.04 actions-310.yaml	45m 27s
ubuntu-22.04 actions-311.yaml	45m 27s
ubuntu-22.04 actions-312.yaml	48m 28s
ubuntu-24.04-arm actions-311.yaml	33m 25s
ubuntu-24.04-arm actions-312.yaml	38m 12s
ubuntu-24.04-arm actions-310.yaml	34m 42s
	14h 35m 52s

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