BUG: Fix Index.equals between object and string #23681

Job	Run time
python-dev	0s
Linux-32-bit	9m 19s
Linux-Musl	6m 47s
Pyodide build	8m 46s
macos-14 actions-310.yaml	30m 34s
macos-14 actions-313.yaml	28m 28s
macos-14 actions-311.yaml	26m 22s
windows-latest actions-310.yaml	32m 23s
windows-latest actions-312.yaml	32m 23s
windows-latest actions-313.yaml	32m 21s
macos-13 actions-313.yaml	32m 35s
windows-latest actions-311.yaml	32m 22s
macos-14 actions-312.yaml	24m 42s
macos-13 actions-311.yaml	24m 30s
macos-13 actions-312.yaml	25m 58s
macos-13 actions-310.yaml	30m 39s
ubuntu-24.04 actions-312.yaml	32m 30s
ubuntu-24.04 actions-310.yaml	32m 29s
ubuntu-24.04 actions-311.yaml	32m 28s
Downstream Compat	5m 30s
Freethreading	22m 5s
Future infer strings	32m 29s
ubuntu-24.04-arm actions-311.yaml	32m 28s
Future infer strings (without pyarrow)	24m 45s
Pypy	1m 22s
Minimum Versions	26m 49s
Pyarrow Nightly	19m 57s
ubuntu-24.04 actions-313.yaml	32m 28s
ubuntu-24.04-arm actions-313.yaml	32m 29s
ubuntu-24.04-arm actions-312.yaml	32m 28s
Numpy Dev	18m 35s
Locale: it_IT	23m 38s
Locale: zh_CN	23m 53s
ubuntu-24.04-arm actions-310.yaml	32m 27s
	13h 56m 59s

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