TST (string dtype): resolve xfails for frame methods #21546

Job	Run time
Linux-32-bit	14m 45s
Linux-Musl	14m 46s
python-dev (macOS-13)	15m 1s
python-dev (macOS-14)	11m 6s
python-dev (ubuntu-22.04)	14m 58s
python-dev (windows-latest)	14m 51s
macos-13 actions-310.yaml	15m 4s
Pyodide build	14m 58s
macos-13 actions-311.yaml	15m 3s
macos-13 actions-312.yaml	15m 1s
macos-14 actions-311.yaml	15m 2s
macos-14 actions-310.yaml	15m 4s
macos-14 actions-312.yaml	15m 4s
windows-latest actions-311.yaml	14m 59s
windows-latest actions-312.yaml	14m 50s
windows-latest actions-310.yaml	14m 56s
python-freethreading	14m 59s
Minimum Versions	14m 59s
Future infer strings (without pyarrow)	19m 45s
Locale: zh_CN	15m 1s
Locale: it_IT	15m 0s
Downstream Compat	6m 0s
Numpy Dev	15m 3s
Pyarrow Nightly	15m 1s
Future infer strings	19m 43s
Pypy	1m 23s
ubuntu-22.04 actions-310.yaml	19m 43s
ubuntu-22.04 actions-311.yaml	19m 44s
ubuntu-22.04 actions-312.yaml	19m 37s
ubuntu-24.04-arm actions-311.yaml	19m 44s
ubuntu-24.04-arm actions-312.yaml	19m 44s
ubuntu-24.04-arm actions-310.yaml	19m 45s
	8h 10m 39s

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