DOC: Fix grammar in AUTHORS.md #24097

Job	Run time
Linux-32-bit	18m 28s
Linux-Musl	15m 38s
python-dev	-1s
Pyodide build	23m 15s
windows-latest actions-313.yaml	41m 44s
windows-latest actions-312.yaml	38m 30s
macos-13 actions-311.yaml	30m 19s
macos-14 actions-311.yaml	21m 27s
macos-14 actions-312.yaml	40m 22s
macos-14 actions-310.yaml	21m 10s
macos-14 actions-313.yaml	40m 16s
windows-latest actions-310.yaml	37m 29s
macos-13 actions-312.yaml	31m 47s
macos-13 actions-310.yaml	33m 51s
macos-13 actions-313.yaml	33m 48s
windows-latest actions-311.yaml	37m 55s
ubuntu-24.04-arm actions-312.yaml	35m 22s
Minimum Versions	24m 33s
Locale: it_IT	24m 18s
Pyarrow Nightly	20m 21s
Locale: zh_CN	23m 56s
Numpy Dev	17m 4s
ubuntu-24.04-arm actions-310.yaml	35m 50s
ubuntu-24.04 actions-311.yaml	41m 15s
ubuntu-24.04 actions-312.yaml	41m 17s
ubuntu-24.04 actions-310.yaml	41m 13s
Downstream Compat	6m 25s
ubuntu-24.04-arm actions-311.yaml	34m 55s
Future infer strings (without pyarrow)	39m 47s
Freethreading	21m 3s
ubuntu-24.04-arm actions-313.yaml	36m 14s
Future infer strings	41m 12s
Pypy	1m 39s
ubuntu-24.04 actions-313.yaml	41m 13s
	16h 33m 35s

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