BUG: Fix GroupBy aggregate coersion of outputs inconsistency for pyarrow dtypes #24185

Job	Run time
Linux-Musl	15m 23s
python-dev	0s
Pyodide build	23m 22s
Linux-32-bit	18m 52s
windows-latest actions-312.yaml	35m 39s
macos-13 actions-310.yaml	27m 20s
windows-latest actions-311.yaml	42m 22s
macos-13 actions-313.yaml	36m 55s
macos-13 actions-312.yaml	35m 3s
windows-latest actions-313.yaml	49m 39s
macos-13 actions-311.yaml	29m 46s
macos-14 actions-310.yaml	25m 15s
macos-14 actions-312.yaml	15m 51s
macos-14 actions-311.yaml	22m 49s
windows-latest actions-310.yaml	33m 31s
ubuntu-24.04-arm actions-313.yaml	35m 22s
macos-14 actions-313.yaml	23m 56s
Pypy	1m 27s
Numpy Dev	16m 39s
Future infer strings	41m 49s
Locale: it_IT	23m 34s
ubuntu-24.04-arm actions-310.yaml	35m 17s
Locale: zh_CN	23m 27s
Pyarrow Nightly	20m 38s
ubuntu-24.04 actions-310.yaml	46m 56s
ubuntu-24.04 actions-313.yaml	47m 3s
ubuntu-24.04-arm actions-311.yaml	34m 28s
Future infer strings (without pyarrow)	39m 41s
Minimum Versions	23m 24s
Downstream Compat	5m 31s
ubuntu-24.04 actions-312.yaml	44m 1s
Freethreading	21m 28s
ubuntu-24.04 actions-311.yaml	41m 40s
ubuntu-24.04-arm actions-312.yaml	35m 13s
	16h 13m 21s

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