BUG: Fix sorting by column named None in DataFrame.sort_values (GH#61512) #23568

Job	Run time
Linux-32-bit	6m 34s
Linux-Musl	6m 33s
Pyodide build	6m 43s
windows-latest actions-313.yaml	6m 52s
macos-13 actions-310.yaml	6m 27s
windows-latest actions-311.yaml	6m 36s
macos-13 actions-311.yaml	6m 32s
windows-latest actions-310.yaml	6m 43s
windows-latest actions-312.yaml	6m 45s
macos-14 actions-311.yaml	6m 38s
macos-13 actions-312.yaml	6m 28s
macos-14 actions-310.yaml	6m 40s
macos-13 actions-313.yaml	6m 27s
macos-14 actions-313.yaml	6m 35s
macos-14 actions-312.yaml	6m 32s
ubuntu-24.04-arm actions-313.yaml	11m 17s
Locale: it_IT	6m 33s
Future infer strings	11m 18s
ubuntu-24.04 actions-313.yaml	11m 14s
Future infer strings (without pyarrow)	11m 16s
ubuntu-24.04-arm actions-311.yaml	11m 15s
Freethreading	6m 32s
ubuntu-24.04-arm actions-310.yaml	11m 13s
Pyarrow Nightly	6m 33s
Pypy	1m 20s
ubuntu-24.04-arm actions-312.yaml	11m 17s
Downstream Compat	5m 15s
Locale: zh_CN	6m 33s
ubuntu-24.04 actions-310.yaml	11m 17s
ubuntu-24.04 actions-312.yaml	11m 15s
Minimum Versions	6m 31s
Numpy Dev	6m 33s
ubuntu-24.04 actions-311.yaml	11m 18s
python-dev	0s
	4h 17m 35s

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