TST(string dtype): Resolve xfails in test_from_dummies #24418

Job	Run time
Linux-32-bit	18m 25s
Pyodide build	22m 57s
python-dev	0s
Linux-Musl	15m 21s
macos-14 actions-313.yaml	24m 28s
macos-14 actions-312.yaml	15m 53s
windows-latest actions-311.yaml	29m 14s
windows-latest actions-313.yaml	29m 14s
macos-13 actions-311.yaml	29m 19s
windows-latest actions-312.yaml	29m 15s
macos-13 actions-312.yaml	27m 41s
macos-13 actions-310.yaml	29m 30s
macos-14 actions-311.yaml	17m 34s
macos-13 actions-313.yaml	27m 31s
Numpy Dev	16m 26s
windows-latest actions-310.yaml	29m 19s
macos-14 actions-310.yaml	28m 31s
ubuntu-24.04 actions-312.yaml	29m 18s
Locale: zh_CN	23m 29s
Pyarrow Nightly	20m 19s
ubuntu-24.04 actions-310.yaml	29m 17s
ubuntu-24.04-arm actions-313.yaml	29m 15s
ubuntu-24.04-arm actions-311.yaml	29m 15s
Locale: it_IT	23m 32s
ubuntu-24.04-arm actions-312.yaml	29m 16s
ubuntu-24.04 actions-313.yaml	34m 1s
Downstream Compat	5m 21s
ubuntu-24.04 actions-311.yaml	29m 17s
Future infer strings (without pyarrow)	29m 17s
ubuntu-24.04-arm actions-310.yaml	29m 14s
Future infer strings	29m 17s
Minimum Versions	22m 36s
Freethreading	21m 24s
	13h 24m 46s

Provide feedback