BUG: Fix Index.equals between object and string #24016

Job	Run time
python-dev	0s
Linux-Musl	17m 3s
Linux-32-bit	18m 22s
Pyodide build	23m 38s
macos-13 actions-312.yaml	38m 8s
macos-14 actions-313.yaml	23m 49s
windows-latest actions-312.yaml	39m 41s
windows-latest actions-310.yaml	35m 51s
windows-latest actions-313.yaml	44m 37s
macos-13 actions-313.yaml	43m 4s
macos-13 actions-310.yaml	42m 41s
macos-14 actions-311.yaml	28m 7s
macos-14 actions-310.yaml	30m 11s
macos-14 actions-312.yaml	23m 45s
windows-latest actions-311.yaml	39m 3s
macos-13 actions-311.yaml	34m 24s
Minimum Versions	25m 52s
Numpy Dev	17m 0s
Locale: zh_CN	24m 25s
Future infer strings	47m 11s
ubuntu-24.04 actions-310.yaml	49m 0s
ubuntu-24.04 actions-313.yaml	50m 41s
ubuntu-24.04-arm actions-310.yaml	35m 45s
ubuntu-24.04-arm actions-312.yaml	35m 12s
ubuntu-24.04-arm actions-313.yaml	36m 17s
ubuntu-24.04-arm actions-311.yaml	36m 45s
Freethreading	22m 25s
Downstream Compat	6m 2s
Locale: it_IT	24m 22s
Pypy	1m 45s
Pyarrow Nightly	21m 40s
ubuntu-24.04 actions-312.yaml	47m 24s
ubuntu-24.04 actions-311.yaml	42m 58s
Future infer strings (without pyarrow)	39m 45s
	17h 26m 53s

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